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Finding the Fourth Proportional to 96,691.92, 133,434.72 and 54,254.40

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Solution

The fourth proportional to 96,691.92, 133,434.72 and 54,254.40 is: 74,871.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,691.92 : 133,434.72 = 54,254.40 : x
  2. Step 2: Convert to fraction form
    96,691.92/133,434.72 = 54,254.40/x
  3. Step 3: Cross multiply
    96,691.92x = 133,434.72 × 54,254.40
  4. Step 4: Simplify right side
    96,691.92x = 7,239,420,672.77
  5. Step 5: Solve for x
    x = 7,239,420,672.77/96,691.92
  6. Step 6: Final answer
    x = 74,871.00

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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.