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Finding the Fourth Proportional to 73,787.76, 110,603.88 and 36,774

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Solution

The fourth proportional to 73,787.76, 110,603.88 and 36,774 is: 55,122.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,787.76 : 110,603.88 = 36,774 : x
  2. Step 2: Convert to fraction form
    73,787.76/110,603.88 = 36,774/x
  3. Step 3: Cross multiply
    73,787.76x = 110,603.88 × 36,774
  4. Step 4: Simplify right side
    73,787.76x = 4,067,347,083.12
  5. Step 5: Solve for x
    x = 4,067,347,083.12/73,787.76
  6. Step 6: Final answer
    x = 55,122.25

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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.