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Finding the Fourth Proportional to 123,808.97, 170,473.81 and 96,694.58

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Solution

The fourth proportional to 123,808.97, 170,473.81 and 96,694.58 is: 133,139.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,808.97 : 170,473.81 = 96,694.58 : x
  2. Step 2: Convert to fraction form
    123,808.97/170,473.81 = 96,694.58/x
  3. Step 3: Cross multiply
    123,808.97x = 170,473.81 × 96,694.58
  4. Step 4: Simplify right side
    123,808.97x = 16,483,892,123.11
  5. Step 5: Solve for x
    x = 16,483,892,123.11/123,808.97
  6. Step 6: Final answer
    x = 133,139.73

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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.