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Finding the Fourth Proportional to 221,687.30, 332,549.28 and 95,330.54

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Solution

The fourth proportional to 221,687.30, 332,549.28 and 95,330.54 is: 143,003.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,687.30 : 332,549.28 = 95,330.54 : x
  2. Step 2: Convert to fraction form
    221,687.30/332,549.28 = 95,330.54/x
  3. Step 3: Cross multiply
    221,687.30x = 332,549.28 × 95,330.54
  4. Step 4: Simplify right side
    221,687.30x = 31,702,103,270.38
  5. Step 5: Solve for x
    x = 31,702,103,270.38/221,687.30
  6. Step 6: Final answer
    x = 143,003.69

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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.