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Finding the Fourth Proportional to 96,671.20, 145,006.80 and 88,376.80

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Solution

The fourth proportional to 96,671.20, 145,006.80 and 88,376.80 is: 132,565.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,671.20 : 145,006.80 = 88,376.80 : x
  2. Step 2: Convert to fraction form
    96,671.20/145,006.80 = 88,376.80/x
  3. Step 3: Cross multiply
    96,671.20x = 145,006.80 × 88,376.80
  4. Step 4: Simplify right side
    96,671.20x = 12,815,236,962.24
  5. Step 5: Solve for x
    x = 12,815,236,962.24/96,671.20
  6. Step 6: Final answer
    x = 132,565.20

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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.