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Finding the Fourth Proportional to 424,013.67, 636,017.25 and 108,470.07

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Solution

The fourth proportional to 424,013.67, 636,017.25 and 108,470.07 is: 162,704.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,013.67 : 636,017.25 = 108,470.07 : x
  2. Step 2: Convert to fraction form
    424,013.67/636,017.25 = 108,470.07/x
  3. Step 3: Cross multiply
    424,013.67x = 636,017.25 × 108,470.07
  4. Step 4: Simplify right side
    424,013.67x = 68,988,835,628.71
  5. Step 5: Solve for x
    x = 68,988,835,628.71/424,013.67
  6. Step 6: Final answer
    x = 162,704.27

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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.