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Finding the Fourth Proportional to 80,768.90, 111,459.92 and 44,958.87

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Solution

The fourth proportional to 80,768.90, 111,459.92 and 44,958.87 is: 62,042.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,768.90 : 111,459.92 = 44,958.87 : x
  2. Step 2: Convert to fraction form
    80,768.90/111,459.92 = 44,958.87/x
  3. Step 3: Cross multiply
    80,768.90x = 111,459.92 × 44,958.87
  4. Step 4: Simplify right side
    80,768.90x = 5,011,111,828.70
  5. Step 5: Solve for x
    x = 5,011,111,828.70/80,768.90
  6. Step 6: Final answer
    x = 62,042.59

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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.