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Finding the Fourth Proportional to 150,314.40, 225,471.60 and 147,981.60

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Solution

The fourth proportional to 150,314.40, 225,471.60 and 147,981.60 is: 221,972.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,314.40 : 225,471.60 = 147,981.60 : x
  2. Step 2: Convert to fraction form
    150,314.40/225,471.60 = 147,981.60/x
  3. Step 3: Cross multiply
    150,314.40x = 225,471.60 × 147,981.60
  4. Step 4: Simplify right side
    150,314.40x = 33,365,648,122.56
  5. Step 5: Solve for x
    x = 33,365,648,122.56/150,314.40
  6. Step 6: Final answer
    x = 221,972.40

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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.