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Finding the Fourth Proportional to 576,206.65, 864,309.98 and 155,481.85

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Solution

The fourth proportional to 576,206.65, 864,309.98 and 155,481.85 is: 233,222.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,206.65 : 864,309.98 = 155,481.85 : x
  2. Step 2: Convert to fraction form
    576,206.65/864,309.98 = 155,481.85/x
  3. Step 3: Cross multiply
    576,206.65x = 864,309.98 × 155,481.85
  4. Step 4: Simplify right side
    576,206.65x = 134,384,514,663.86
  5. Step 5: Solve for x
    x = 134,384,514,663.86/576,206.65
  6. Step 6: Final answer
    x = 233,222.78

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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.