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Finding the Fourth Proportional to 483,728.55, 725,608.05 and 123,901.65

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Solution

The fourth proportional to 483,728.55, 725,608.05 and 123,901.65 is: 185,856.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,728.55 : 725,608.05 = 123,901.65 : x
  2. Step 2: Convert to fraction form
    483,728.55/725,608.05 = 123,901.65/x
  3. Step 3: Cross multiply
    483,728.55x = 725,608.05 × 123,901.65
  4. Step 4: Simplify right side
    483,728.55x = 89,904,034,648.28
  5. Step 5: Solve for x
    x = 89,904,034,648.28/483,728.55
  6. Step 6: Final answer
    x = 185,856.37

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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.