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Finding the Fourth Proportional to 70,861.92, 106,329.24 and 48,693.12

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Solution

The fourth proportional to 70,861.92, 106,329.24 and 48,693.12 is: 73,064.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,861.92 : 106,329.24 = 48,693.12 : x
  2. Step 2: Convert to fraction form
    70,861.92/106,329.24 = 48,693.12/x
  3. Step 3: Cross multiply
    70,861.92x = 106,329.24 × 48,693.12
  4. Step 4: Simplify right side
    70,861.92x = 5,177,502,442.83
  5. Step 5: Solve for x
    x = 5,177,502,442.83/70,861.92
  6. Step 6: Final answer
    x = 73,064.66

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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.