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Finding the Fourth Proportional to 168,691.16, 232,810.80 and 97,074.20

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Solution

The fourth proportional to 168,691.16, 232,810.80 and 97,074.20 is: 133,972.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,691.16 : 232,810.80 = 97,074.20 : x
  2. Step 2: Convert to fraction form
    168,691.16/232,810.80 = 97,074.20/x
  3. Step 3: Cross multiply
    168,691.16x = 232,810.80 × 97,074.20
  4. Step 4: Simplify right side
    168,691.16x = 22,599,922,161.36
  5. Step 5: Solve for x
    x = 22,599,922,161.36/168,691.16
  6. Step 6: Final answer
    x = 133,972.18

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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.