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Finding the Fourth Proportional to 240,489.60, 360,766.80 and 82,766.40

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Solution

The fourth proportional to 240,489.60, 360,766.80 and 82,766.40 is: 124,160.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,489.60 : 360,766.80 = 82,766.40 : x
  2. Step 2: Convert to fraction form
    240,489.60/360,766.80 = 82,766.40/x
  3. Step 3: Cross multiply
    240,489.60x = 360,766.80 × 82,766.40
  4. Step 4: Simplify right side
    240,489.60x = 29,859,369,275.52
  5. Step 5: Solve for x
    x = 29,859,369,275.52/240,489.60
  6. Step 6: Final answer
    x = 124,160.75

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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.