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Finding the Fourth Proportional to 424,585.52, 636,681.48 and 158,274.56

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Solution

The fourth proportional to 424,585.52, 636,681.48 and 158,274.56 is: 237,338.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,585.52 : 636,681.48 = 158,274.56 : x
  2. Step 2: Convert to fraction form
    424,585.52/636,681.48 = 158,274.56/x
  3. Step 3: Cross multiply
    424,585.52x = 636,681.48 × 158,274.56
  4. Step 4: Simplify right side
    424,585.52x = 100,770,481,107.15
  5. Step 5: Solve for x
    x = 100,770,481,107.15/424,585.52
  6. Step 6: Final answer
    x = 237,338.48

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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.