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Finding the Fourth Proportional to 117,906.72, 176,793.93 and 103,898.58

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Solution

The fourth proportional to 117,906.72, 176,793.93 and 103,898.58 is: 155,789.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,906.72 : 176,793.93 = 103,898.58 : x
  2. Step 2: Convert to fraction form
    117,906.72/176,793.93 = 103,898.58/x
  3. Step 3: Cross multiply
    117,906.72x = 176,793.93 × 103,898.58
  4. Step 4: Simplify right side
    117,906.72x = 18,368,638,279.62
  5. Step 5: Solve for x
    x = 18,368,638,279.62/117,906.72
  6. Step 6: Final answer
    x = 155,789.58

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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.