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Finding the Fourth Proportional to 220,436.52, 330,605.10 and 62,661.48

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Solution

The fourth proportional to 220,436.52, 330,605.10 and 62,661.48 is: 93,978.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,436.52 : 330,605.10 = 62,661.48 : x
  2. Step 2: Convert to fraction form
    220,436.52/330,605.10 = 62,661.48/x
  3. Step 3: Cross multiply
    220,436.52x = 330,605.10 × 62,661.48
  4. Step 4: Simplify right side
    220,436.52x = 20,716,204,861.55
  5. Step 5: Solve for x
    x = 20,716,204,861.55/220,436.52
  6. Step 6: Final answer
    x = 93,978.10

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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.