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Finding the Fourth Proportional to 247,003.76, 341,107.39 and 210,983.87

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Solution

The fourth proportional to 247,003.76, 341,107.39 and 210,983.87 is: 291,364.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,003.76 : 341,107.39 = 210,983.87 : x
  2. Step 2: Convert to fraction form
    247,003.76/341,107.39 = 210,983.87/x
  3. Step 3: Cross multiply
    247,003.76x = 341,107.39 × 210,983.87
  4. Step 4: Simplify right side
    247,003.76x = 71,968,157,227.80
  5. Step 5: Solve for x
    x = 71,968,157,227.80/247,003.76
  6. Step 6: Final answer
    x = 291,364.62

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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.