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Finding the Fourth Proportional to 222,717.20, 333,630.20 and 133,921.76

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Solution

The fourth proportional to 222,717.20, 333,630.20 and 133,921.76 is: 200,614.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,717.20 : 333,630.20 = 133,921.76 : x
  2. Step 2: Convert to fraction form
    222,717.20/333,630.20 = 133,921.76/x
  3. Step 3: Cross multiply
    222,717.20x = 333,630.20 × 133,921.76
  4. Step 4: Simplify right side
    222,717.20x = 44,680,343,573.15
  5. Step 5: Solve for x
    x = 44,680,343,573.15/222,717.20
  6. Step 6: Final answer
    x = 200,614.70

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1.5x scale

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.