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Finding the Fourth Proportional to 338,278.46, 506,791.28 and 169,601.90

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Solution

The fourth proportional to 338,278.46, 506,791.28 and 169,601.90 is: 254,088.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,278.46 : 506,791.28 = 169,601.90 : x
  2. Step 2: Convert to fraction form
    338,278.46/506,791.28 = 169,601.90/x
  3. Step 3: Cross multiply
    338,278.46x = 506,791.28 × 169,601.90
  4. Step 4: Simplify right side
    338,278.46x = 85,952,761,881.48
  5. Step 5: Solve for x
    x = 85,952,761,881.48/338,278.46
  6. Step 6: Final answer
    x = 254,088.79

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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.