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Finding the Fourth Proportional to 80,901.92, 121,352.88 and 25,497.92

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Solution

The fourth proportional to 80,901.92, 121,352.88 and 25,497.92 is: 38,246.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,901.92 : 121,352.88 = 25,497.92 : x
  2. Step 2: Convert to fraction form
    80,901.92/121,352.88 = 25,497.92/x
  3. Step 3: Cross multiply
    80,901.92x = 121,352.88 × 25,497.92
  4. Step 4: Simplify right side
    80,901.92x = 3,094,246,026.01
  5. Step 5: Solve for x
    x = 3,094,246,026.01/80,901.92
  6. Step 6: Final answer
    x = 38,246.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.