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Finding the Fourth Proportional to 80,339.60, 110,862.12 and 44,531.12

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Solution

The fourth proportional to 80,339.60, 110,862.12 and 44,531.12 is: 61,449.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,339.60 : 110,862.12 = 44,531.12 : x
  2. Step 2: Convert to fraction form
    80,339.60/110,862.12 = 44,531.12/x
  3. Step 3: Cross multiply
    80,339.60x = 110,862.12 × 44,531.12
  4. Step 4: Simplify right side
    80,339.60x = 4,936,814,369.17
  5. Step 5: Solve for x
    x = 4,936,814,369.17/80,339.60
  6. Step 6: Final answer
    x = 61,449.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.