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Finding the Fourth Proportional to 193,737.60, 267,448.80 and 129,314.40

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Solution

The fourth proportional to 193,737.60, 267,448.80 and 129,314.40 is: 178,514.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,737.60 : 267,448.80 = 129,314.40 : x
  2. Step 2: Convert to fraction form
    193,737.60/267,448.80 = 129,314.40/x
  3. Step 3: Cross multiply
    193,737.60x = 267,448.80 × 129,314.40
  4. Step 4: Simplify right side
    193,737.60x = 34,584,981,102.72
  5. Step 5: Solve for x
    x = 34,584,981,102.72/193,737.60
  6. Step 6: Final answer
    x = 178,514.55

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1.5x scale

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.