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Finding the Fourth Proportional to 71,864.76, 107,852.82 and 36,801.72

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Solution

The fourth proportional to 71,864.76, 107,852.82 and 36,801.72 is: 55,231.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,864.76 : 107,852.82 = 36,801.72 : x
  2. Step 2: Convert to fraction form
    71,864.76/107,852.82 = 36,801.72/x
  3. Step 3: Cross multiply
    71,864.76x = 107,852.82 × 36,801.72
  4. Step 4: Simplify right side
    71,864.76x = 3,969,169,282.85
  5. Step 5: Solve for x
    x = 3,969,169,282.85/71,864.76
  6. Step 6: Final answer
    x = 55,231.09

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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.