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Finding the Fourth Proportional to 159,551.56, 220,171.26 and 87,927.58

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Solution

The fourth proportional to 159,551.56, 220,171.26 and 87,927.58 is: 121,334.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,551.56 : 220,171.26 = 87,927.58 : x
  2. Step 2: Convert to fraction form
    159,551.56/220,171.26 = 87,927.58/x
  3. Step 3: Cross multiply
    159,551.56x = 220,171.26 × 87,927.58
  4. Step 4: Simplify right side
    159,551.56x = 19,359,126,077.35
  5. Step 5: Solve for x
    x = 19,359,126,077.35/159,551.56
  6. Step 6: Final answer
    x = 121,334.61

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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.