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Finding the Fourth Proportional to 169,706.49, 234,177.39 and 98,109.51

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Solution

The fourth proportional to 169,706.49, 234,177.39 and 98,109.51 is: 135,380.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,706.49 : 234,177.39 = 98,109.51 : x
  2. Step 2: Convert to fraction form
    169,706.49/234,177.39 = 98,109.51/x
  3. Step 3: Cross multiply
    169,706.49x = 234,177.39 × 98,109.51
  4. Step 4: Simplify right side
    169,706.49x = 22,975,028,985.98
  5. Step 5: Solve for x
    x = 22,975,028,985.98/169,706.49
  6. Step 6: Final answer
    x = 135,380.97

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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.