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Finding the Fourth Proportional to 83,065.96, 124,635.48 and 43,613.92

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Solution

The fourth proportional to 83,065.96, 124,635.48 and 43,613.92 is: 65,440.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,065.96 : 124,635.48 = 43,613.92 : x
  2. Step 2: Convert to fraction form
    83,065.96/124,635.48 = 43,613.92/x
  3. Step 3: Cross multiply
    83,065.96x = 124,635.48 × 43,613.92
  4. Step 4: Simplify right side
    83,065.96x = 5,435,841,853.88
  5. Step 5: Solve for x
    x = 5,435,841,853.88/83,065.96
  6. Step 6: Final answer
    x = 65,440.07

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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.