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Finding the Fourth Proportional to 109,472.88, 151,072.38 and 59,171.88

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Solution

The fourth proportional to 109,472.88, 151,072.38 and 59,171.88 is: 81,657.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,472.88 : 151,072.38 = 59,171.88 : x
  2. Step 2: Convert to fraction form
    109,472.88/151,072.38 = 59,171.88/x
  3. Step 3: Cross multiply
    109,472.88x = 151,072.38 × 59,171.88
  4. Step 4: Simplify right side
    109,472.88x = 8,939,236,740.67
  5. Step 5: Solve for x
    x = 8,939,236,740.67/109,472.88
  6. Step 6: Final answer
    x = 81,657.09

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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.