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Finding the Fourth Proportional to 92,414.11, 127,520.76 and 52,128.55

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Solution

The fourth proportional to 92,414.11, 127,520.76 and 52,128.55 is: 71,931.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,414.11 : 127,520.76 = 52,128.55 : x
  2. Step 2: Convert to fraction form
    92,414.11/127,520.76 = 52,128.55/x
  3. Step 3: Cross multiply
    92,414.11x = 127,520.76 × 52,128.55
  4. Step 4: Simplify right side
    92,414.11x = 6,647,472,313.70
  5. Step 5: Solve for x
    x = 6,647,472,313.70/92,414.11
  6. Step 6: Final answer
    x = 71,931.36

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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.