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Finding the Fourth Proportional to 85,960.28, 118,623.26 and 47,717.58

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Solution

The fourth proportional to 85,960.28, 118,623.26 and 47,717.58 is: 65,849.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,960.28 : 118,623.26 = 47,717.58 : x
  2. Step 2: Convert to fraction form
    85,960.28/118,623.26 = 47,717.58/x
  3. Step 3: Cross multiply
    85,960.28x = 118,623.26 × 47,717.58
  4. Step 4: Simplify right side
    85,960.28x = 5,660,414,898.91
  5. Step 5: Solve for x
    x = 5,660,414,898.91/85,960.28
  6. Step 6: Final answer
    x = 65,849.19

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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.