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Finding the Fourth Proportional to 96,691.92, 133,436.88 and 54,253.32

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Solution

The fourth proportional to 96,691.92, 133,436.88 and 54,253.32 is: 74,870.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,691.92 : 133,436.88 = 54,253.32 : x
  2. Step 2: Convert to fraction form
    96,691.92/133,436.88 = 54,253.32/x
  3. Step 3: Cross multiply
    96,691.92x = 133,436.88 × 54,253.32
  4. Step 4: Simplify right side
    96,691.92x = 7,239,393,750.44
  5. Step 5: Solve for x
    x = 7,239,393,750.44/96,691.92
  6. Step 6: Final answer
    x = 74,870.72

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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.