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Finding the Fourth Proportional to 424,662.18, 636,972.39 and 158,402.22

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Solution

The fourth proportional to 424,662.18, 636,972.39 and 158,402.22 is: 237,595.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,662.18 : 636,972.39 = 158,402.22 : x
  2. Step 2: Convert to fraction form
    424,662.18/636,972.39 = 158,402.22/x
  3. Step 3: Cross multiply
    424,662.18x = 636,972.39 × 158,402.22
  4. Step 4: Simplify right side
    424,662.18x = 100,897,840,654.71
  5. Step 5: Solve for x
    x = 100,897,840,654.71/424,662.18
  6. Step 6: Final answer
    x = 237,595.54

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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.