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Finding the Fourth Proportional to 92,672.40, 127,834.96 and 54,932.88

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Solution

The fourth proportional to 92,672.40, 127,834.96 and 54,932.88 is: 75,775.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,672.40 : 127,834.96 = 54,932.88 : x
  2. Step 2: Convert to fraction form
    92,672.40/127,834.96 = 54,932.88/x
  3. Step 3: Cross multiply
    92,672.40x = 127,834.96 × 54,932.88
  4. Step 4: Simplify right side
    92,672.40x = 7,022,342,517.48
  5. Step 5: Solve for x
    x = 7,022,342,517.48/92,672.40
  6. Step 6: Final answer
    x = 75,775.99

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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.