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Finding the Fourth Proportional to 118,793.68, 163,935.26 and 71,047.03

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Solution

The fourth proportional to 118,793.68, 163,935.26 and 71,047.03 is: 98,044.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,793.68 : 163,935.26 = 71,047.03 : x
  2. Step 2: Convert to fraction form
    118,793.68/163,935.26 = 71,047.03/x
  3. Step 3: Cross multiply
    118,793.68x = 163,935.26 × 71,047.03
  4. Step 4: Simplify right side
    118,793.68x = 11,647,112,160.37
  5. Step 5: Solve for x
    x = 11,647,112,160.37/118,793.68
  6. Step 6: Final answer
    x = 98,044.88

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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.