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Finding the Fourth Proportional to 77,872.20, 116,827.80 and 22,468.20

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Solution

The fourth proportional to 77,872.20, 116,827.80 and 22,468.20 is: 33,707.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,872.20 : 116,827.80 = 22,468.20 : x
  2. Step 2: Convert to fraction form
    77,872.20/116,827.80 = 22,468.20/x
  3. Step 3: Cross multiply
    77,872.20x = 116,827.80 × 22,468.20
  4. Step 4: Simplify right side
    77,872.20x = 2,624,910,375.96
  5. Step 5: Solve for x
    x = 2,624,910,375.96/77,872.20
  6. Step 6: Final answer
    x = 33,707.93

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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.