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Finding the Fourth Proportional to 261,273.52, 391,860.96 and 101,349.10

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Solution

The fourth proportional to 261,273.52, 391,860.96 and 101,349.10 is: 152,004.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,273.52 : 391,860.96 = 101,349.10 : x
  2. Step 2: Convert to fraction form
    261,273.52/391,860.96 = 101,349.10/x
  3. Step 3: Cross multiply
    261,273.52x = 391,860.96 × 101,349.10
  4. Step 4: Simplify right side
    261,273.52x = 39,714,755,621.14
  5. Step 5: Solve for x
    x = 39,714,755,621.14/261,273.52
  6. Step 6: Final answer
    x = 152,004.52

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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.