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Finding the Fourth Proportional to 80,387.60, 110,935.19 and 44,580.92

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Solution

The fourth proportional to 80,387.60, 110,935.19 and 44,580.92 is: 61,521.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,387.60 : 110,935.19 = 44,580.92 : x
  2. Step 2: Convert to fraction form
    80,387.60/110,935.19 = 44,580.92/x
  3. Step 3: Cross multiply
    80,387.60x = 110,935.19 × 44,580.92
  4. Step 4: Simplify right side
    80,387.60x = 4,945,592,607.67
  5. Step 5: Solve for x
    x = 4,945,592,607.67/80,387.60
  6. Step 6: Final answer
    x = 61,521.83

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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.