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Finding the Fourth Proportional to 169,791.12, 234,332.19 and 98,188.74

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Solution

The fourth proportional to 169,791.12, 234,332.19 and 98,188.74 is: 135,512.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,791.12 : 234,332.19 = 98,188.74 : x
  2. Step 2: Convert to fraction form
    169,791.12/234,332.19 = 98,188.74/x
  3. Step 3: Cross multiply
    169,791.12x = 234,332.19 × 98,188.74
  4. Step 4: Simplify right side
    169,791.12x = 23,008,782,477.54
  5. Step 5: Solve for x
    x = 23,008,782,477.54/169,791.12
  6. Step 6: Final answer
    x = 135,512.28

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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.