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Finding the Fourth Proportional to 247,391.76, 341,401.28 and 134,214.51

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Solution

The fourth proportional to 247,391.76, 341,401.28 and 134,214.51 is: 185,216.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,391.76 : 341,401.28 = 134,214.51 : x
  2. Step 2: Convert to fraction form
    247,391.76/341,401.28 = 134,214.51/x
  3. Step 3: Cross multiply
    247,391.76x = 341,401.28 × 134,214.51
  4. Step 4: Simplify right side
    247,391.76x = 45,821,004,837.50
  5. Step 5: Solve for x
    x = 45,821,004,837.50/247,391.76
  6. Step 6: Final answer
    x = 185,216.37

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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.