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Finding the Fourth Proportional to 251,363.93, 346,861.60 and 147,981.71

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Solution

The fourth proportional to 251,363.93, 346,861.60 and 147,981.71 is: 204,202.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,363.93 : 346,861.60 = 147,981.71 : x
  2. Step 2: Convert to fraction form
    251,363.93/346,861.60 = 147,981.71/x
  3. Step 3: Cross multiply
    251,363.93x = 346,861.60 × 147,981.71
  4. Step 4: Simplify right side
    251,363.93x = 51,329,173,198.54
  5. Step 5: Solve for x
    x = 51,329,173,198.54/251,363.93
  6. Step 6: Final answer
    x = 204,202.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.