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Finding the Fourth Proportional to 79,706.49, 119,575.49 and 22,780.90

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Solution

The fourth proportional to 79,706.49, 119,575.49 and 22,780.90 is: 34,175.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,706.49 : 119,575.49 = 22,780.90 : x
  2. Step 2: Convert to fraction form
    79,706.49/119,575.49 = 22,780.90/x
  3. Step 3: Cross multiply
    79,706.49x = 119,575.49 × 22,780.90
  4. Step 4: Simplify right side
    79,706.49x = 2,724,037,280.14
  5. Step 5: Solve for x
    x = 2,724,037,280.14/79,706.49
  6. Step 6: Final answer
    x = 34,175.85

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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.