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Finding the Fourth Proportional to 221,591.16, 332,157.11 and 103,165.11

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Solution

The fourth proportional to 221,591.16, 332,157.11 and 103,165.11 is: 154,640.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,591.16 : 332,157.11 = 103,165.11 : x
  2. Step 2: Convert to fraction form
    221,591.16/332,157.11 = 103,165.11/x
  3. Step 3: Cross multiply
    221,591.16x = 332,157.11 × 103,165.11
  4. Step 4: Simplify right side
    221,591.16x = 34,267,024,274.61
  5. Step 5: Solve for x
    x = 34,267,024,274.61/221,591.16
  6. Step 6: Final answer
    x = 154,640.75

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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.