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Finding the Fourth Proportional to 159,872.77, 220,624.94 and 88,252.61

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Solution

The fourth proportional to 159,872.77, 220,624.94 and 88,252.61 is: 121,788.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,872.77 : 220,624.94 = 88,252.61 : x
  2. Step 2: Convert to fraction form
    159,872.77/220,624.94 = 88,252.61/x
  3. Step 3: Cross multiply
    159,872.77x = 220,624.94 × 88,252.61
  4. Step 4: Simplify right side
    159,872.77x = 19,470,727,558.29
  5. Step 5: Solve for x
    x = 19,470,727,558.29/159,872.77
  6. Step 6: Final answer
    x = 121,788.89

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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.