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Finding the Fourth Proportional to 361,961.64, 543,040.92 and 125,322.84

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Solution

The fourth proportional to 361,961.64, 543,040.92 and 125,322.84 is: 188,018.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,961.64 : 543,040.92 = 125,322.84 : x
  2. Step 2: Convert to fraction form
    361,961.64/543,040.92 = 125,322.84/x
  3. Step 3: Cross multiply
    361,961.64x = 543,040.92 × 125,322.84
  4. Step 4: Simplify right side
    361,961.64x = 68,055,430,330.61
  5. Step 5: Solve for x
    x = 68,055,430,330.61/361,961.64
  6. Step 6: Final answer
    x = 188,018.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.