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Finding the Fourth Proportional to 372,761.66, 559,084.16 and 123,443.66

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Solution

The fourth proportional to 372,761.66, 559,084.16 and 123,443.66 is: 185,146.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,761.66 : 559,084.16 = 123,443.66 : x
  2. Step 2: Convert to fraction form
    372,761.66/559,084.16 = 123,443.66/x
  3. Step 3: Cross multiply
    372,761.66x = 559,084.16 × 123,443.66
  4. Step 4: Simplify right side
    372,761.66x = 69,015,394,958.43
  5. Step 5: Solve for x
    x = 69,015,394,958.43/372,761.66
  6. Step 6: Final answer
    x = 185,146.17

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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.