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Finding the Fourth Proportional to 169,720.80, 254,581.20 and 93,613.20

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Solution

The fourth proportional to 169,720.80, 254,581.20 and 93,613.20 is: 140,419.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,720.80 : 254,581.20 = 93,613.20 : x
  2. Step 2: Convert to fraction form
    169,720.80/254,581.20 = 93,613.20/x
  3. Step 3: Cross multiply
    169,720.80x = 254,581.20 × 93,613.20
  4. Step 4: Simplify right side
    169,720.80x = 23,832,160,791.84
  5. Step 5: Solve for x
    x = 23,832,160,791.84/169,720.80
  6. Step 6: Final answer
    x = 140,419.80

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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.