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Finding the Fourth Proportional to 81,454.52, 122,079.72 and 44,013.08

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Solution

The fourth proportional to 81,454.52, 122,079.72 and 44,013.08 is: 65,964.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,454.52 : 122,079.72 = 44,013.08 : x
  2. Step 2: Convert to fraction form
    81,454.52/122,079.72 = 44,013.08/x
  3. Step 3: Cross multiply
    81,454.52x = 122,079.72 × 44,013.08
  4. Step 4: Simplify right side
    81,454.52x = 5,373,104,482.74
  5. Step 5: Solve for x
    x = 5,373,104,482.74/81,454.52
  6. Step 6: Final answer
    x = 65,964.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.