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Finding the Fourth Proportional to 378,293.18, 567,575.32 and 162,061.22

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Solution

The fourth proportional to 378,293.18, 567,575.32 and 162,061.22 is: 243,149.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,293.18 : 567,575.32 = 162,061.22 : x
  2. Step 2: Convert to fraction form
    378,293.18/567,575.32 = 162,061.22/x
  3. Step 3: Cross multiply
    378,293.18x = 567,575.32 × 162,061.22
  4. Step 4: Simplify right side
    378,293.18x = 91,981,948,801.09
  5. Step 5: Solve for x
    x = 91,981,948,801.09/378,293.18
  6. Step 6: Final answer
    x = 243,149.90

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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.