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Finding the Fourth Proportional to 247,126, 341,034.60 and 133,949.20

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Solution

The fourth proportional to 247,126, 341,034.60 and 133,949.20 is: 184,850.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,126 : 341,034.60 = 133,949.20 : x
  2. Step 2: Convert to fraction form
    247,126/341,034.60 = 133,949.20/x
  3. Step 3: Cross multiply
    247,126x = 341,034.60 × 133,949.20
  4. Step 4: Simplify right side
    247,126x = 45,681,311,842.32
  5. Step 5: Solve for x
    x = 45,681,311,842.32/247,126
  6. Step 6: Final answer
    x = 184,850.29

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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.