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Finding the Fourth Proportional to 82,952.40, 124,486.92 and 75,020.88

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Solution

The fourth proportional to 82,952.40, 124,486.92 and 75,020.88 is: 112,584.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,952.40 : 124,486.92 = 75,020.88 : x
  2. Step 2: Convert to fraction form
    82,952.40/124,486.92 = 75,020.88/x
  3. Step 3: Cross multiply
    82,952.40x = 124,486.92 × 75,020.88
  4. Step 4: Simplify right side
    82,952.40x = 9,339,118,286.89
  5. Step 5: Solve for x
    x = 9,339,118,286.89/82,952.40
  6. Step 6: Final answer
    x = 112,584.06

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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.