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Finding the Fourth Proportional to 221,475.20, 332,158.80 and 63,687.20

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Solution

The fourth proportional to 221,475.20, 332,158.80 and 63,687.20 is: 95,515.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,475.20 : 332,158.80 = 63,687.20 : x
  2. Step 2: Convert to fraction form
    221,475.20/332,158.80 = 63,687.20/x
  3. Step 3: Cross multiply
    221,475.20x = 332,158.80 × 63,687.20
  4. Step 4: Simplify right side
    221,475.20x = 21,154,263,927.36
  5. Step 5: Solve for x
    x = 21,154,263,927.36/221,475.20
  6. Step 6: Final answer
    x = 95,515.27

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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.