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Finding the Fourth Proportional to 96,032.88, 132,471.72 and 74,512.80

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Solution

The fourth proportional to 96,032.88, 132,471.72 and 74,512.80 is: 102,786.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,032.88 : 132,471.72 = 74,512.80 : x
  2. Step 2: Convert to fraction form
    96,032.88/132,471.72 = 74,512.80/x
  3. Step 3: Cross multiply
    96,032.88x = 132,471.72 × 74,512.80
  4. Step 4: Simplify right side
    96,032.88x = 9,870,838,778.02
  5. Step 5: Solve for x
    x = 9,870,838,778.02/96,032.88
  6. Step 6: Final answer
    x = 102,786.03

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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.