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Finding the Fourth Proportional to 235,373.28, 324,949.20 and 155,034.24

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Solution

The fourth proportional to 235,373.28, 324,949.20 and 155,034.24 is: 214,035.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,373.28 : 324,949.20 = 155,034.24 : x
  2. Step 2: Convert to fraction form
    235,373.28/324,949.20 = 155,034.24/x
  3. Step 3: Cross multiply
    235,373.28x = 324,949.20 × 155,034.24
  4. Step 4: Simplify right side
    235,373.28x = 50,378,252,260.61
  5. Step 5: Solve for x
    x = 50,378,252,260.61/235,373.28
  6. Step 6: Final answer
    x = 214,035.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.