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Finding the Fourth Proportional to 123,894.13, 170,960.18 and 68,702.06

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Solution

The fourth proportional to 123,894.13, 170,960.18 and 68,702.06 is: 94,801.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,894.13 : 170,960.18 = 68,702.06 : x
  2. Step 2: Convert to fraction form
    123,894.13/170,960.18 = 68,702.06/x
  3. Step 3: Cross multiply
    123,894.13x = 170,960.18 × 68,702.06
  4. Step 4: Simplify right side
    123,894.13x = 11,745,316,543.97
  5. Step 5: Solve for x
    x = 11,745,316,543.97/123,894.13
  6. Step 6: Final answer
    x = 94,801.24

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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.