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Finding the Fourth Proportional to 79,624.88, 109,836.68 and 49,765.04

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Solution

The fourth proportional to 79,624.88, 109,836.68 and 49,765.04 is: 68,647.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,624.88 : 109,836.68 = 49,765.04 : x
  2. Step 2: Convert to fraction form
    79,624.88/109,836.68 = 49,765.04/x
  3. Step 3: Cross multiply
    79,624.88x = 109,836.68 × 49,765.04
  4. Step 4: Simplify right side
    79,624.88x = 5,466,026,773.67
  5. Step 5: Solve for x
    x = 5,466,026,773.67/79,624.88
  6. Step 6: Final answer
    x = 68,647.22

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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.