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Finding the Fourth Proportional to 169,641.69, 234,185.22 and 98,007.87

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Solution

The fourth proportional to 169,641.69, 234,185.22 and 98,007.87 is: 135,296.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,641.69 : 234,185.22 = 98,007.87 : x
  2. Step 2: Convert to fraction form
    169,641.69/234,185.22 = 98,007.87/x
  3. Step 3: Cross multiply
    169,641.69x = 234,185.22 × 98,007.87
  4. Step 4: Simplify right side
    169,641.69x = 22,951,994,597.68
  5. Step 5: Solve for x
    x = 22,951,994,597.68/169,641.69
  6. Step 6: Final answer
    x = 135,296.90

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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.