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Finding the Fourth Proportional to 221,699.28, 332,598.10 and 63,915.42

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Solution

The fourth proportional to 221,699.28, 332,598.10 and 63,915.42 is: 95,887.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,699.28 : 332,598.10 = 63,915.42 : x
  2. Step 2: Convert to fraction form
    221,699.28/332,598.10 = 63,915.42/x
  3. Step 3: Cross multiply
    221,699.28x = 332,598.10 × 63,915.42
  4. Step 4: Simplify right side
    221,699.28x = 21,258,147,252.70
  5. Step 5: Solve for x
    x = 21,258,147,252.70/221,699.28
  6. Step 6: Final answer
    x = 95,887.31

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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.