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Finding the Fourth Proportional to 85,955.82, 118,617.17 and 47,713.16

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Solution

The fourth proportional to 85,955.82, 118,617.17 and 47,713.16 is: 65,843.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,955.82 : 118,617.17 = 47,713.16 : x
  2. Step 2: Convert to fraction form
    85,955.82/118,617.17 = 47,713.16/x
  3. Step 3: Cross multiply
    85,955.82x = 118,617.17 × 47,713.16
  4. Step 4: Simplify right side
    85,955.82x = 5,659,599,179.31
  5. Step 5: Solve for x
    x = 5,659,599,179.31/85,955.82
  6. Step 6: Final answer
    x = 65,843.12

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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.