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Finding the Fourth Proportional to 96,781.80, 145,124.10 and 44,131.80

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Solution

The fourth proportional to 96,781.80, 145,124.10 and 44,131.80 is: 66,175.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,781.80 : 145,124.10 = 44,131.80 : x
  2. Step 2: Convert to fraction form
    96,781.80/145,124.10 = 44,131.80/x
  3. Step 3: Cross multiply
    96,781.80x = 145,124.10 × 44,131.80
  4. Step 4: Simplify right side
    96,781.80x = 6,404,587,756.38
  5. Step 5: Solve for x
    x = 6,404,587,756.38/96,781.80
  6. Step 6: Final answer
    x = 66,175.54

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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.