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Finding the Fourth Proportional to 83,452.80, 124,948.80 and 65,020.80

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Solution

The fourth proportional to 83,452.80, 124,948.80 and 65,020.80 is: 97,351.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,452.80 : 124,948.80 = 65,020.80 : x
  2. Step 2: Convert to fraction form
    83,452.80/124,948.80 = 65,020.80/x
  3. Step 3: Cross multiply
    83,452.80x = 124,948.80 × 65,020.80
  4. Step 4: Simplify right side
    83,452.80x = 8,124,270,935.04
  5. Step 5: Solve for x
    x = 8,124,270,935.04/83,452.80
  6. Step 6: Final answer
    x = 97,351.69

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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.