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Finding the Fourth Proportional to 337,640.15, 506,273.27 and 138,100.68

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Solution

The fourth proportional to 337,640.15, 506,273.27 and 138,100.68 is: 207,074.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,640.15 : 506,273.27 = 138,100.68 : x
  2. Step 2: Convert to fraction form
    337,640.15/506,273.27 = 138,100.68/x
  3. Step 3: Cross multiply
    337,640.15x = 506,273.27 × 138,100.68
  4. Step 4: Simplify right side
    337,640.15x = 69,916,682,162.32
  5. Step 5: Solve for x
    x = 69,916,682,162.32/337,640.15
  6. Step 6: Final answer
    x = 207,074.55

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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.