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Finding the Fourth Proportional to 299,948.60, 413,941.56 and 172,624.52

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Solution

The fourth proportional to 299,948.60, 413,941.56 and 172,624.52 is: 238,229.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,948.60 : 413,941.56 = 172,624.52 : x
  2. Step 2: Convert to fraction form
    299,948.60/413,941.56 = 172,624.52/x
  3. Step 3: Cross multiply
    299,948.60x = 413,941.56 × 172,624.52
  4. Step 4: Simplify right side
    299,948.60x = 71,456,463,103.05
  5. Step 5: Solve for x
    x = 71,456,463,103.05/299,948.60
  6. Step 6: Final answer
    x = 238,229.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.