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Finding the Fourth Proportional to 118,058.34, 177,113.82 and 43,176.84

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Solution

The fourth proportional to 118,058.34, 177,113.82 and 43,176.84 is: 64,774.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,058.34 : 177,113.82 = 43,176.84 : x
  2. Step 2: Convert to fraction form
    118,058.34/177,113.82 = 43,176.84/x
  3. Step 3: Cross multiply
    118,058.34x = 177,113.82 × 43,176.84
  4. Step 4: Simplify right side
    118,058.34x = 7,647,215,067.93
  5. Step 5: Solve for x
    x = 7,647,215,067.93/118,058.34
  6. Step 6: Final answer
    x = 64,774.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.