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Finding the Fourth Proportional to 86,201.35, 119,016.47 and 53,949.04

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Solution

The fourth proportional to 86,201.35, 119,016.47 and 53,949.04 is: 74,486.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,201.35 : 119,016.47 = 53,949.04 : x
  2. Step 2: Convert to fraction form
    86,201.35/119,016.47 = 53,949.04/x
  3. Step 3: Cross multiply
    86,201.35x = 119,016.47 × 53,949.04
  4. Step 4: Simplify right side
    86,201.35x = 6,420,824,138.02
  5. Step 5: Solve for x
    x = 6,420,824,138.02/86,201.35
  6. Step 6: Final answer
    x = 74,486.35

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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.