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Finding the Fourth Proportional to 123,882.48, 170,955.36 and 67,294.26

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Solution

The fourth proportional to 123,882.48, 170,955.36 and 67,294.26 is: 92,864.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,882.48 : 170,955.36 = 67,294.26 : x
  2. Step 2: Convert to fraction form
    123,882.48/170,955.36 = 67,294.26/x
  3. Step 3: Cross multiply
    123,882.48x = 170,955.36 × 67,294.26
  4. Step 4: Simplify right side
    123,882.48x = 11,504,314,444.23
  5. Step 5: Solve for x
    x = 11,504,314,444.23/123,882.48
  6. Step 6: Final answer
    x = 92,864.74

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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.