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Finding the Fourth Proportional to 502,879.10, 754,342.28 and 165,949.21

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Solution

The fourth proportional to 502,879.10, 754,342.28 and 165,949.21 is: 248,931.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,879.10 : 754,342.28 = 165,949.21 : x
  2. Step 2: Convert to fraction form
    502,879.10/754,342.28 = 165,949.21/x
  3. Step 3: Cross multiply
    502,879.10x = 754,342.28 × 165,949.21
  4. Step 4: Simplify right side
    502,879.10x = 125,182,505,435.60
  5. Step 5: Solve for x
    x = 125,182,505,435.60/502,879.10
  6. Step 6: Final answer
    x = 248,931.61

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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.