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Finding the Fourth Proportional to 96,987.20, 145,480.80 and 41,691.20

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Solution

The fourth proportional to 96,987.20, 145,480.80 and 41,691.20 is: 62,536.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,987.20 : 145,480.80 = 41,691.20 : x
  2. Step 2: Convert to fraction form
    96,987.20/145,480.80 = 41,691.20/x
  3. Step 3: Cross multiply
    96,987.20x = 145,480.80 × 41,691.20
  4. Step 4: Simplify right side
    96,987.20x = 6,065,269,128.96
  5. Step 5: Solve for x
    x = 6,065,269,128.96/96,987.20
  6. Step 6: Final answer
    x = 62,536.80

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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.