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Finding the Fourth Proportional to 96,572.16, 132,976.44 and 85,660.20

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Solution

The fourth proportional to 96,572.16, 132,976.44 and 85,660.20 is: 117,951.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,572.16 : 132,976.44 = 85,660.20 : x
  2. Step 2: Convert to fraction form
    96,572.16/132,976.44 = 85,660.20/x
  3. Step 3: Cross multiply
    96,572.16x = 132,976.44 × 85,660.20
  4. Step 4: Simplify right side
    96,572.16x = 11,390,788,445.69
  5. Step 5: Solve for x
    x = 11,390,788,445.69/96,572.16
  6. Step 6: Final answer
    x = 117,951.06

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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.