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Finding the Fourth Proportional to 86,167.83, 129,255.85 and 27,004.01

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Solution

The fourth proportional to 86,167.83, 129,255.85 and 27,004.01 is: 40,507.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,167.83 : 129,255.85 = 27,004.01 : x
  2. Step 2: Convert to fraction form
    86,167.83/129,255.85 = 27,004.01/x
  3. Step 3: Cross multiply
    86,167.83x = 129,255.85 × 27,004.01
  4. Step 4: Simplify right side
    86,167.83x = 3,490,426,016.97
  5. Step 5: Solve for x
    x = 3,490,426,016.97/86,167.83
  6. Step 6: Final answer
    x = 40,507.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.