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Finding the Fourth Proportional to 224,488.80, 336,862.80 and 84,261.60

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Solution

The fourth proportional to 224,488.80, 336,862.80 and 84,261.60 is: 126,441.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,488.80 : 336,862.80 = 84,261.60 : x
  2. Step 2: Convert to fraction form
    224,488.80/336,862.80 = 84,261.60/x
  3. Step 3: Cross multiply
    224,488.80x = 336,862.80 × 84,261.60
  4. Step 4: Simplify right side
    224,488.80x = 28,384,598,508.48
  5. Step 5: Solve for x
    x = 28,384,598,508.48/224,488.80
  6. Step 6: Final answer
    x = 126,441.05

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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.