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Finding the Fourth Proportional to 96,337.80, 144,506.70 and 86,520.60

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Solution

The fourth proportional to 96,337.80, 144,506.70 and 86,520.60 is: 129,780.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,337.80 : 144,506.70 = 86,520.60 : x
  2. Step 2: Convert to fraction form
    96,337.80/144,506.70 = 86,520.60/x
  3. Step 3: Cross multiply
    96,337.80x = 144,506.70 × 86,520.60
  4. Step 4: Simplify right side
    96,337.80x = 12,502,806,388.02
  5. Step 5: Solve for x
    x = 12,502,806,388.02/96,337.80
  6. Step 6: Final answer
    x = 129,780.90

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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.