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Finding the Fourth Proportional to 98,691.67, 147,972.39 and 35,480.08

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Solution

The fourth proportional to 98,691.67, 147,972.39 and 35,480.08 is: 53,196.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,691.67 : 147,972.39 = 35,480.08 : x
  2. Step 2: Convert to fraction form
    98,691.67/147,972.39 = 35,480.08/x
  3. Step 3: Cross multiply
    98,691.67x = 147,972.39 × 35,480.08
  4. Step 4: Simplify right side
    98,691.67x = 5,250,072,234.99
  5. Step 5: Solve for x
    x = 5,250,072,234.99/98,691.67
  6. Step 6: Final answer
    x = 53,196.71

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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.