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Finding the Fourth Proportional to 80,638.65, 111,285.27 and 44,827.88

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Solution

The fourth proportional to 80,638.65, 111,285.27 and 44,827.88 is: 61,864.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,638.65 : 111,285.27 = 44,827.88 : x
  2. Step 2: Convert to fraction form
    80,638.65/111,285.27 = 44,827.88/x
  3. Step 3: Cross multiply
    80,638.65x = 111,285.27 × 44,827.88
  4. Step 4: Simplify right side
    80,638.65x = 4,988,682,172.90
  5. Step 5: Solve for x
    x = 4,988,682,172.90/80,638.65
  6. Step 6: Final answer
    x = 61,864.65

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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.