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Finding the Fourth Proportional to 159,873.33, 220,625.72 and 88,253.18

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Solution

The fourth proportional to 159,873.33, 220,625.72 and 88,253.18 is: 121,789.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,873.33 : 220,625.72 = 88,253.18 : x
  2. Step 2: Convert to fraction form
    159,873.33/220,625.72 = 88,253.18/x
  3. Step 3: Cross multiply
    159,873.33x = 220,625.72 × 88,253.18
  4. Step 4: Simplify right side
    159,873.33x = 19,470,919,835.40
  5. Step 5: Solve for x
    x = 19,470,919,835.40/159,873.33
  6. Step 6: Final answer
    x = 121,789.67

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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.