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Finding the Fourth Proportional to 103,691.60, 155,566.20 and 44,555.60

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Solution

The fourth proportional to 103,691.60, 155,566.20 and 44,555.60 is: 66,845.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,691.60 : 155,566.20 = 44,555.60 : x
  2. Step 2: Convert to fraction form
    103,691.60/155,566.20 = 44,555.60/x
  3. Step 3: Cross multiply
    103,691.60x = 155,566.20 × 44,555.60
  4. Step 4: Simplify right side
    103,691.60x = 6,931,345,380.72
  5. Step 5: Solve for x
    x = 6,931,345,380.72/103,691.60
  6. Step 6: Final answer
    x = 66,845.78

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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.