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Finding the Fourth Proportional to 75,251.60, 112,877.40 and 74,733.20

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Solution

The fourth proportional to 75,251.60, 112,877.40 and 74,733.20 is: 112,099.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,251.60 : 112,877.40 = 74,733.20 : x
  2. Step 2: Convert to fraction form
    75,251.60/112,877.40 = 74,733.20/x
  3. Step 3: Cross multiply
    75,251.60x = 112,877.40 × 74,733.20
  4. Step 4: Simplify right side
    75,251.60x = 8,435,689,309.68
  5. Step 5: Solve for x
    x = 8,435,689,309.68/75,251.60
  6. Step 6: Final answer
    x = 112,099.80

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1.5x scale

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.