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Finding the Fourth Proportional to 162,121.77, 223,731.81 and 101,694.96

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Solution

The fourth proportional to 162,121.77, 223,731.81 and 101,694.96 is: 140,341.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,121.77 : 223,731.81 = 101,694.96 : x
  2. Step 2: Convert to fraction form
    162,121.77/223,731.81 = 101,694.96/x
  3. Step 3: Cross multiply
    162,121.77x = 223,731.81 × 101,694.96
  4. Step 4: Simplify right side
    162,121.77x = 22,752,397,468.68
  5. Step 5: Solve for x
    x = 22,752,397,468.68/162,121.77
  6. Step 6: Final answer
    x = 140,341.41

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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.