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Finding the Fourth Proportional to 87,996,345.30, 123,449,975.10 and 87,996,345.30

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Solution

The fourth proportional to 87,996,345.30, 123,449,975.10 and 87,996,345.30 is: 123,449,975.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,996,345.30 : 123,449,975.10 = 87,996,345.30 : x
  2. Step 2: Convert to fraction form
    87,996,345.30/123,449,975.10 = 87,996,345.30/x
  3. Step 3: Cross multiply
    87,996,345.30x = 123,449,975.10 × 87,996,345.30
  4. Step 4: Simplify right side
    87,996,345.30x = 10,863,146,636,176,002
  5. Step 5: Solve for x
    x = 10,863,146,636,176,002/87,996,345.30
  6. Step 6: Final answer
    x = 123,449,975.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.