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Finding the Fourth Proportional to 469,725.92, 704,612.57 and 132,790.76

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Solution

The fourth proportional to 469,725.92, 704,612.57 and 132,790.76 is: 199,192.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,725.92 : 704,612.57 = 132,790.76 : x
  2. Step 2: Convert to fraction form
    469,725.92/704,612.57 = 132,790.76/x
  3. Step 3: Cross multiply
    469,725.92x = 704,612.57 × 132,790.76
  4. Step 4: Simplify right side
    469,725.92x = 93,566,034,488.84
  5. Step 5: Solve for x
    x = 93,566,034,488.84/469,725.92
  6. Step 6: Final answer
    x = 199,192.83

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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.