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Finding the Fourth Proportional to 252,706.48, 379,033.70 and 84,208.60

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Solution

The fourth proportional to 252,706.48, 379,033.70 and 84,208.60 is: 126,304.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,706.48 : 379,033.70 = 84,208.60 : x
  2. Step 2: Convert to fraction form
    252,706.48/379,033.70 = 84,208.60/x
  3. Step 3: Cross multiply
    252,706.48x = 379,033.70 × 84,208.60
  4. Step 4: Simplify right side
    252,706.48x = 31,917,895,545.17
  5. Step 5: Solve for x
    x = 31,917,895,545.17/252,706.48
  6. Step 6: Final answer
    x = 126,304.22

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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.