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Finding the Fourth Proportional to 118,876.86, 177,076.71 and 112,565.97

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Solution

The fourth proportional to 118,876.86, 177,076.71 and 112,565.97 is: 167,676.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,876.86 : 177,076.71 = 112,565.97 : x
  2. Step 2: Convert to fraction form
    118,876.86/177,076.71 = 112,565.97/x
  3. Step 3: Cross multiply
    118,876.86x = 177,076.71 × 112,565.97
  4. Step 4: Simplify right side
    118,876.86x = 19,932,811,625.56
  5. Step 5: Solve for x
    x = 19,932,811,625.56/118,876.86
  6. Step 6: Final answer
    x = 167,676.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.