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Finding the Fourth Proportional to 222,385.72, 333,508.92 and 72,591.88

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Solution

The fourth proportional to 222,385.72, 333,508.92 and 72,591.88 is: 108,865.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,385.72 : 333,508.92 = 72,591.88 : x
  2. Step 2: Convert to fraction form
    222,385.72/333,508.92 = 72,591.88/x
  3. Step 3: Cross multiply
    222,385.72x = 333,508.92 × 72,591.88
  4. Step 4: Simplify right side
    222,385.72x = 24,210,039,499.57
  5. Step 5: Solve for x
    x = 24,210,039,499.57/222,385.72
  6. Step 6: Final answer
    x = 108,865.08

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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.