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Finding the Fourth Proportional to 337,700.91, 506,552.31 and 138,021.33

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Solution

The fourth proportional to 337,700.91, 506,552.31 and 138,021.33 is: 207,032.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,700.91 : 506,552.31 = 138,021.33 : x
  2. Step 2: Convert to fraction form
    337,700.91/506,552.31 = 138,021.33/x
  3. Step 3: Cross multiply
    337,700.91x = 506,552.31 × 138,021.33
  4. Step 4: Simplify right side
    337,700.91x = 69,915,023,540.77
  5. Step 5: Solve for x
    x = 69,915,023,540.77/337,700.91
  6. Step 6: Final answer
    x = 207,032.38

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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.