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Finding the Fourth Proportional to 83,674.60, 125,511.90 and 50,432.20

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Solution

The fourth proportional to 83,674.60, 125,511.90 and 50,432.20 is: 75,648.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,674.60 : 125,511.90 = 50,432.20 : x
  2. Step 2: Convert to fraction form
    83,674.60/125,511.90 = 50,432.20/x
  3. Step 3: Cross multiply
    83,674.60x = 125,511.90 × 50,432.20
  4. Step 4: Simplify right side
    83,674.60x = 6,329,841,243.18
  5. Step 5: Solve for x
    x = 6,329,841,243.18/83,674.60
  6. Step 6: Final answer
    x = 75,648.30

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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.