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Finding the Fourth Proportional to 129,025.92, 193,531.16 and 40,266.92

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Solution

The fourth proportional to 129,025.92, 193,531.16 and 40,266.92 is: 60,397.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,025.92 : 193,531.16 = 40,266.92 : x
  2. Step 2: Convert to fraction form
    129,025.92/193,531.16 = 40,266.92/x
  3. Step 3: Cross multiply
    129,025.92x = 193,531.16 × 40,266.92
  4. Step 4: Simplify right side
    129,025.92x = 7,792,903,737.23
  5. Step 5: Solve for x
    x = 7,792,903,737.23/129,025.92
  6. Step 6: Final answer
    x = 60,397.97

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1.5x scale

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.