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Finding the Fourth Proportional to 78,758.74, 108,687.24 and 44,767.44

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Solution

The fourth proportional to 78,758.74, 108,687.24 and 44,767.44 is: 61,779.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,758.74 : 108,687.24 = 44,767.44 : x
  2. Step 2: Convert to fraction form
    78,758.74/108,687.24 = 44,767.44/x
  3. Step 3: Cross multiply
    78,758.74x = 108,687.24 × 44,767.44
  4. Step 4: Simplify right side
    78,758.74x = 4,865,649,495.47
  5. Step 5: Solve for x
    x = 4,865,649,495.47/78,758.74
  6. Step 6: Final answer
    x = 61,779.17

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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.