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Finding the Fourth Proportional to 123,514.77, 170,450.97 and 66,926.13

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Solution

The fourth proportional to 123,514.77, 170,450.97 and 66,926.13 is: 92,358.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,514.77 : 170,450.97 = 66,926.13 : x
  2. Step 2: Convert to fraction form
    123,514.77/170,450.97 = 66,926.13/x
  3. Step 3: Cross multiply
    123,514.77x = 170,450.97 × 66,926.13
  4. Step 4: Simplify right side
    123,514.77x = 11,407,623,776.85
  5. Step 5: Solve for x
    x = 11,407,623,776.85/123,514.77
  6. Step 6: Final answer
    x = 92,358.38

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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.