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Finding the Fourth Proportional to 82,980,600.15, 124,470,900.23 and 82,980,600.15

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Solution

The fourth proportional to 82,980,600.15, 124,470,900.23 and 82,980,600.15 is: 124,470,900.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,980,600.15 : 124,470,900.23 = 82,980,600.15 : x
  2. Step 2: Convert to fraction form
    82,980,600.15/124,470,900.23 = 82,980,600.15/x
  3. Step 3: Cross multiply
    82,980,600.15x = 124,470,900.23 × 82,980,600.15
  4. Step 4: Simplify right side
    82,980,600.15x = 10,328,670,001,881,270
  5. Step 5: Solve for x
    x = 10,328,670,001,881,270/82,980,600.15
  6. Step 6: Final answer
    x = 124,470,900.23

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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.