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Finding the Fourth Proportional to 372,551.53, 558,821.79 and 92,068.78

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Solution

The fourth proportional to 372,551.53, 558,821.79 and 92,068.78 is: 138,101.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,551.53 : 558,821.79 = 92,068.78 : x
  2. Step 2: Convert to fraction form
    372,551.53/558,821.79 = 92,068.78/x
  3. Step 3: Cross multiply
    372,551.53x = 558,821.79 × 92,068.78
  4. Step 4: Simplify right side
    372,551.53x = 51,450,040,442.72
  5. Step 5: Solve for x
    x = 51,450,040,442.72/372,551.53
  6. Step 6: Final answer
    x = 138,101.81

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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.