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Finding the Fourth Proportional to 118,747.59, 178,133.09 and 34,508.49

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Solution

The fourth proportional to 118,747.59, 178,133.09 and 34,508.49 is: 51,766.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,747.59 : 178,133.09 = 34,508.49 : x
  2. Step 2: Convert to fraction form
    118,747.59/178,133.09 = 34,508.49/x
  3. Step 3: Cross multiply
    118,747.59x = 178,133.09 × 34,508.49
  4. Step 4: Simplify right side
    118,747.59x = 6,147,103,954.93
  5. Step 5: Solve for x
    x = 6,147,103,954.93/118,747.59
  6. Step 6: Final answer
    x = 51,766.14

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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.