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Finding the Fourth Proportional to 169,643.68, 234,116.40 and 98,033.20

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Solution

The fourth proportional to 169,643.68, 234,116.40 and 98,033.20 is: 135,290.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,643.68 : 234,116.40 = 98,033.20 : x
  2. Step 2: Convert to fraction form
    169,643.68/234,116.40 = 98,033.20/x
  3. Step 3: Cross multiply
    169,643.68x = 234,116.40 × 98,033.20
  4. Step 4: Simplify right side
    169,643.68x = 22,951,179,864.48
  5. Step 5: Solve for x
    x = 22,951,179,864.48/169,643.68
  6. Step 6: Final answer
    x = 135,290.51

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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.