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Finding the Fourth Proportional to 85,600.91, 118,132.73 and 47,359.79

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Solution

The fourth proportional to 85,600.91, 118,132.73 and 47,359.79 is: 65,358.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,600.91 : 118,132.73 = 47,359.79 : x
  2. Step 2: Convert to fraction form
    85,600.91/118,132.73 = 47,359.79/x
  3. Step 3: Cross multiply
    85,600.91x = 118,132.73 × 47,359.79
  4. Step 4: Simplify right side
    85,600.91x = 5,594,741,284.93
  5. Step 5: Solve for x
    x = 5,594,741,284.93/85,600.91
  6. Step 6: Final answer
    x = 65,358.43

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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.