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Finding the Fourth Proportional to 79,861.68, 119,487.96 and 48,155.04

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Solution

The fourth proportional to 79,861.68, 119,487.96 and 48,155.04 is: 72,048.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,861.68 : 119,487.96 = 48,155.04 : x
  2. Step 2: Convert to fraction form
    79,861.68/119,487.96 = 48,155.04/x
  3. Step 3: Cross multiply
    79,861.68x = 119,487.96 × 48,155.04
  4. Step 4: Simplify right side
    79,861.68x = 5,753,947,493.32
  5. Step 5: Solve for x
    x = 5,753,947,493.32/79,861.68
  6. Step 6: Final answer
    x = 72,048.92

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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.