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Finding the Fourth Proportional to 224,363.20, 336,486.72 and 66,554.56

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Solution

The fourth proportional to 224,363.20, 336,486.72 and 66,554.56 is: 99,814.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,363.20 : 336,486.72 = 66,554.56 : x
  2. Step 2: Convert to fraction form
    224,363.20/336,486.72 = 66,554.56/x
  3. Step 3: Cross multiply
    224,363.20x = 336,486.72 × 66,554.56
  4. Step 4: Simplify right side
    224,363.20x = 22,394,725,595.44
  5. Step 5: Solve for x
    x = 22,394,725,595.44/224,363.20
  6. Step 6: Final answer
    x = 99,814.61

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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.