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Finding the Fourth Proportional to 424,572.43, 636,837.83 and 158,312.12

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Solution

The fourth proportional to 424,572.43, 636,837.83 and 158,312.12 is: 237,460.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,572.43 : 636,837.83 = 158,312.12 : x
  2. Step 2: Convert to fraction form
    424,572.43/636,837.83 = 158,312.12/x
  3. Step 3: Cross multiply
    424,572.43x = 636,837.83 × 158,312.12
  4. Step 4: Simplify right side
    424,572.43x = 100,819,147,764.03
  5. Step 5: Solve for x
    x = 100,819,147,764.03/424,572.43
  6. Step 6: Final answer
    x = 237,460.42

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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.