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Finding the Fourth Proportional to 80,805.64, 111,505.68 and 44,988.76

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Solution

The fourth proportional to 80,805.64, 111,505.68 and 44,988.76 is: 62,081.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,805.64 : 111,505.68 = 44,988.76 : x
  2. Step 2: Convert to fraction form
    80,805.64/111,505.68 = 44,988.76/x
  3. Step 3: Cross multiply
    80,805.64x = 111,505.68 × 44,988.76
  4. Step 4: Simplify right side
    80,805.64x = 5,016,502,276.16
  5. Step 5: Solve for x
    x = 5,016,502,276.16/80,805.64
  6. Step 6: Final answer
    x = 62,081.09

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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.