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Finding the Fourth Proportional to 221,725.50, 332,591.13 and 73,981.50

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Solution

The fourth proportional to 221,725.50, 332,591.13 and 73,981.50 is: 110,973.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,725.50 : 332,591.13 = 73,981.50 : x
  2. Step 2: Convert to fraction form
    221,725.50/332,591.13 = 73,981.50/x
  3. Step 3: Cross multiply
    221,725.50x = 332,591.13 × 73,981.50
  4. Step 4: Simplify right side
    221,725.50x = 24,605,590,684.10
  5. Step 5: Solve for x
    x = 24,605,590,684.10/221,725.50
  6. Step 6: Final answer
    x = 110,973.21

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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.