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Finding the Fourth Proportional to 68,958,902,287.90, 103,438,353,431.85 and 68,958,902,287.90

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Solution

The fourth proportional to 68,958,902,287.90, 103,438,353,431.85 and 68,958,902,287.90 is: 103,438,353,431.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,958,902,287.90 : 103,438,353,431.85 = 68,958,902,287.90 : x
  2. Step 2: Convert to fraction form
    68,958,902,287.90/103,438,353,431.85 = 68,958,902,287.90/x
  3. Step 3: Cross multiply
    68,958,902,287.90x = 103,438,353,431.85 × 68,958,902,287.90
  4. Step 4: Simplify right side
    68,958,902,287.90x = 7,132,995,307,128,210,063,360
  5. Step 5: Solve for x
    x = 7,132,995,307,128,210,063,360/68,958,902,287.90
  6. Step 6: Final answer
    x = 103,438,353,431.85

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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.