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Finding the Fourth Proportional to 92,438.64, 127,524.16 and 54,691.04

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Solution

The fourth proportional to 92,438.64, 127,524.16 and 54,691.04 is: 75,449.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,438.64 : 127,524.16 = 54,691.04 : x
  2. Step 2: Convert to fraction form
    92,438.64/127,524.16 = 54,691.04/x
  3. Step 3: Cross multiply
    92,438.64x = 127,524.16 × 54,691.04
  4. Step 4: Simplify right side
    92,438.64x = 6,974,428,935.53
  5. Step 5: Solve for x
    x = 6,974,428,935.53/92,438.64
  6. Step 6: Final answer
    x = 75,449.28

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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.