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Finding the Fourth Proportional to 159,838.19, 220,576.23 and 88,217.71

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Solution

The fourth proportional to 159,838.19, 220,576.23 and 88,217.71 is: 121,740.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,838.19 : 220,576.23 = 88,217.71 : x
  2. Step 2: Convert to fraction form
    159,838.19/220,576.23 = 88,217.71/x
  3. Step 3: Cross multiply
    159,838.19x = 220,576.23 × 88,217.71
  4. Step 4: Simplify right side
    159,838.19x = 19,458,728,788.15
  5. Step 5: Solve for x
    x = 19,458,728,788.15/159,838.19
  6. Step 6: Final answer
    x = 121,740.17

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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.