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Finding the Fourth Proportional to 221,871.68, 332,758.56 and 64,065.80

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Solution

The fourth proportional to 221,871.68, 332,758.56 and 64,065.80 is: 96,084.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,871.68 : 332,758.56 = 64,065.80 : x
  2. Step 2: Convert to fraction form
    221,871.68/332,758.56 = 64,065.80/x
  3. Step 3: Cross multiply
    221,871.68x = 332,758.56 × 64,065.80
  4. Step 4: Simplify right side
    221,871.68x = 21,318,443,353.25
  5. Step 5: Solve for x
    x = 21,318,443,353.25/221,871.68
  6. Step 6: Final answer
    x = 96,084.56

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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.