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Finding the Fourth Proportional to 300,728.92, 451,328.10 and 132,366.04

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Solution

The fourth proportional to 300,728.92, 451,328.10 and 132,366.04 is: 198,652.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,728.92 : 451,328.10 = 132,366.04 : x
  2. Step 2: Convert to fraction form
    300,728.92/451,328.10 = 132,366.04/x
  3. Step 3: Cross multiply
    300,728.92x = 451,328.10 × 132,366.04
  4. Step 4: Simplify right side
    300,728.92x = 59,740,513,337.72
  5. Step 5: Solve for x
    x = 59,740,513,337.72/300,728.92
  6. Step 6: Final answer
    x = 198,652.37

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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.