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Finding the Fourth Proportional to 82,941.73, 124,449.35 and 43,489.47

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Solution

The fourth proportional to 82,941.73, 124,449.35 and 43,489.47 is: 65,253.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,941.73 : 124,449.35 = 43,489.47 : x
  2. Step 2: Convert to fraction form
    82,941.73/124,449.35 = 43,489.47/x
  3. Step 3: Cross multiply
    82,941.73x = 124,449.35 × 43,489.47
  4. Step 4: Simplify right side
    82,941.73x = 5,412,236,273.34
  5. Step 5: Solve for x
    x = 5,412,236,273.34/82,941.73
  6. Step 6: Final answer
    x = 65,253.48

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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.