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Finding the Fourth Proportional to 247,218.40, 341,159.52 and 134,040.32

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Solution

The fourth proportional to 247,218.40, 341,159.52 and 134,040.32 is: 184,974.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,218.40 : 341,159.52 = 134,040.32 : x
  2. Step 2: Convert to fraction form
    247,218.40/341,159.52 = 134,040.32/x
  3. Step 3: Cross multiply
    247,218.40x = 341,159.52 × 134,040.32
  4. Step 4: Simplify right side
    247,218.40x = 45,729,131,231.85
  5. Step 5: Solve for x
    x = 45,729,131,231.85/247,218.40
  6. Step 6: Final answer
    x = 184,974.63

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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.