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Finding the Fourth Proportional to 76,947,431,570.60, 115,421,147,355.90 and 76,947,431,570.60

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Solution

The fourth proportional to 76,947,431,570.60, 115,421,147,355.90 and 76,947,431,570.60 is: 115,421,147,355.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,947,431,570.60 : 115,421,147,355.90 = 76,947,431,570.60 : x
  2. Step 2: Convert to fraction form
    76,947,431,570.60/115,421,147,355.90 = 76,947,431,570.60/x
  3. Step 3: Cross multiply
    76,947,431,570.60x = 115,421,147,355.90 × 76,947,431,570.60
  4. Step 4: Simplify right side
    76,947,431,570.60x = 8,881,360,837,968,254,730,240
  5. Step 5: Solve for x
    x = 8,881,360,837,968,254,730,240/76,947,431,570.60
  6. Step 6: Final answer
    x = 115,421,147,355.90

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.