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Finding the Fourth Proportional to 247,131.78, 341,041.50 and 133,954.53

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Solution

The fourth proportional to 247,131.78, 341,041.50 and 133,954.53 is: 184,857.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,131.78 : 341,041.50 = 133,954.53 : x
  2. Step 2: Convert to fraction form
    247,131.78/341,041.50 = 133,954.53/x
  3. Step 3: Cross multiply
    247,131.78x = 341,041.50 × 133,954.53
  4. Step 4: Simplify right side
    247,131.78x = 45,684,053,843.00
  5. Step 5: Solve for x
    x = 45,684,053,843.00/247,131.78
  6. Step 6: Final answer
    x = 184,857.06

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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.