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Finding the Fourth Proportional to 123,763.41, 170,796.60 and 67,174.65

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Solution

The fourth proportional to 123,763.41, 170,796.60 and 67,174.65 is: 92,702.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,763.41 : 170,796.60 = 67,174.65 : x
  2. Step 2: Convert to fraction form
    123,763.41/170,796.60 = 67,174.65/x
  3. Step 3: Cross multiply
    123,763.41x = 170,796.60 × 67,174.65
  4. Step 4: Simplify right side
    123,763.41x = 11,473,201,826.19
  5. Step 5: Solve for x
    x = 11,473,201,826.19/123,763.41
  6. Step 6: Final answer
    x = 92,702.70

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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.