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Finding the Fourth Proportional to 92,208.11, 127,301.42 and 86,893.70

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Solution

The fourth proportional to 92,208.11, 127,301.42 and 86,893.70 is: 119,964.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,208.11 : 127,301.42 = 86,893.70 : x
  2. Step 2: Convert to fraction form
    92,208.11/127,301.42 = 86,893.70/x
  3. Step 3: Cross multiply
    92,208.11x = 127,301.42 × 86,893.70
  4. Step 4: Simplify right side
    92,208.11x = 11,061,690,979.78
  5. Step 5: Solve for x
    x = 11,061,690,979.78/92,208.11
  6. Step 6: Final answer
    x = 119,964.41

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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.