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Finding the Fourth Proportional to 159,620.22, 220,273.28 and 88,006.91

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Solution

The fourth proportional to 159,620.22, 220,273.28 and 88,006.91 is: 121,448.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,620.22 : 220,273.28 = 88,006.91 : x
  2. Step 2: Convert to fraction form
    159,620.22/220,273.28 = 88,006.91/x
  3. Step 3: Cross multiply
    159,620.22x = 220,273.28 × 88,006.91
  4. Step 4: Simplify right side
    159,620.22x = 19,385,570,838.05
  5. Step 5: Solve for x
    x = 19,385,570,838.05/159,620.22
  6. Step 6: Final answer
    x = 121,448.09

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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.