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Finding the Fourth Proportional to 123,561.96, 170,514.84 and 66,973.20

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Solution

The fourth proportional to 123,561.96, 170,514.84 and 66,973.20 is: 92,422.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,561.96 : 170,514.84 = 66,973.20 : x
  2. Step 2: Convert to fraction form
    123,561.96/170,514.84 = 66,973.20/x
  3. Step 3: Cross multiply
    123,561.96x = 170,514.84 × 66,973.20
  4. Step 4: Simplify right side
    123,561.96x = 11,419,924,482.29
  5. Step 5: Solve for x
    x = 11,419,924,482.29/123,561.96
  6. Step 6: Final answer
    x = 92,422.66

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.