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Finding the Fourth Proportional to 118,793.98, 163,935.69 and 71,047.33

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Solution

The fourth proportional to 118,793.98, 163,935.69 and 71,047.33 is: 98,045.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,793.98 : 163,935.69 = 71,047.33 : x
  2. Step 2: Convert to fraction form
    118,793.98/163,935.69 = 71,047.33/x
  3. Step 3: Cross multiply
    118,793.98x = 163,935.69 × 71,047.33
  4. Step 4: Simplify right side
    118,793.98x = 11,647,193,066.21
  5. Step 5: Solve for x
    x = 11,647,193,066.21/118,793.98
  6. Step 6: Final answer
    x = 98,045.31

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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.