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Finding the Fourth Proportional to 80,718.75, 111,392.90 and 44,424.38

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Solution

The fourth proportional to 80,718.75, 111,392.90 and 44,424.38 is: 61,306.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,718.75 : 111,392.90 = 44,424.38 : x
  2. Step 2: Convert to fraction form
    80,718.75/111,392.90 = 44,424.38/x
  3. Step 3: Cross multiply
    80,718.75x = 111,392.90 × 44,424.38
  4. Step 4: Simplify right side
    80,718.75x = 4,948,559,739.82
  5. Step 5: Solve for x
    x = 4,948,559,739.82/80,718.75
  6. Step 6: Final answer
    x = 61,306.20

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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.