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Finding the Fourth Proportional to 80,530.74, 111,132 and 44,232.90

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Solution

The fourth proportional to 80,530.74, 111,132 and 44,232.90 is: 61,041.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,530.74 : 111,132 = 44,232.90 : x
  2. Step 2: Convert to fraction form
    80,530.74/111,132 = 44,232.90/x
  3. Step 3: Cross multiply
    80,530.74x = 111,132 × 44,232.90
  4. Step 4: Simplify right side
    80,530.74x = 4,915,690,642.80
  5. Step 5: Solve for x
    x = 4,915,690,642.80/80,530.74
  6. Step 6: Final answer
    x = 61,041.17

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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.