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Finding the Fourth Proportional to 157,471.71, 217,177.26 and 133,062.11

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Solution

The fourth proportional to 157,471.71, 217,177.26 and 133,062.11 is: 183,512.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,471.71 : 217,177.26 = 133,062.11 : x
  2. Step 2: Convert to fraction form
    157,471.71/217,177.26 = 133,062.11/x
  3. Step 3: Cross multiply
    157,471.71x = 217,177.26 × 133,062.11
  4. Step 4: Simplify right side
    157,471.71x = 28,898,063,373.73
  5. Step 5: Solve for x
    x = 28,898,063,373.73/157,471.71
  6. Step 6: Final answer
    x = 183,512.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.