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Finding the Fourth Proportional to 453,595.92, 680,197.20 and 137,979.96

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Solution

The fourth proportional to 453,595.92, 680,197.20 and 137,979.96 is: 206,910.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,595.92 : 680,197.20 = 137,979.96 : x
  2. Step 2: Convert to fraction form
    453,595.92/680,197.20 = 137,979.96/x
  3. Step 3: Cross multiply
    453,595.92x = 680,197.20 × 137,979.96
  4. Step 4: Simplify right side
    453,595.92x = 93,853,582,448.11
  5. Step 5: Solve for x
    x = 93,853,582,448.11/453,595.92
  6. Step 6: Final answer
    x = 206,910.11

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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.