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Finding the Fourth Proportional to 80,491.98, 111,073.37 and 44,679.17

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Solution

The fourth proportional to 80,491.98, 111,073.37 and 44,679.17 is: 61,654.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,491.98 : 111,073.37 = 44,679.17 : x
  2. Step 2: Convert to fraction form
    80,491.98/111,073.37 = 44,679.17/x
  3. Step 3: Cross multiply
    80,491.98x = 111,073.37 × 44,679.17
  4. Step 4: Simplify right side
    80,491.98x = 4,962,665,980.70
  5. Step 5: Solve for x
    x = 4,962,665,980.70/80,491.98
  6. Step 6: Final answer
    x = 61,654.17

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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.