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Finding the Fourth Proportional to 221,812.40, 332,621.40 and 88,648.40

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Solution

The fourth proportional to 221,812.40, 332,621.40 and 88,648.40 is: 132,933.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,812.40 : 332,621.40 = 88,648.40 : x
  2. Step 2: Convert to fraction form
    221,812.40/332,621.40 = 88,648.40/x
  3. Step 3: Cross multiply
    221,812.40x = 332,621.40 × 88,648.40
  4. Step 4: Simplify right side
    221,812.40x = 29,486,354,915.76
  5. Step 5: Solve for x
    x = 29,486,354,915.76/221,812.40
  6. Step 6: Final answer
    x = 132,933.75

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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.