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Finding the Fourth Proportional to 118,856.57, 178,294.57 and 48,736.49

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Solution

The fourth proportional to 118,856.57, 178,294.57 and 48,736.49 is: 73,108.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,856.57 : 178,294.57 = 48,736.49 : x
  2. Step 2: Convert to fraction form
    118,856.57/178,294.57 = 48,736.49/x
  3. Step 3: Cross multiply
    118,856.57x = 178,294.57 × 48,736.49
  4. Step 4: Simplify right side
    118,856.57x = 8,689,450,514.55
  5. Step 5: Solve for x
    x = 8,689,450,514.55/118,856.57
  6. Step 6: Final answer
    x = 73,108.71

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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.