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Finding the Fourth Proportional to 73,321.02, 101,182.50 and 39,787.02

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Solution

The fourth proportional to 73,321.02, 101,182.50 and 39,787.02 is: 54,905.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,321.02 : 101,182.50 = 39,787.02 : x
  2. Step 2: Convert to fraction form
    73,321.02/101,182.50 = 39,787.02/x
  3. Step 3: Cross multiply
    73,321.02x = 101,182.50 × 39,787.02
  4. Step 4: Simplify right side
    73,321.02x = 4,025,750,151.15
  5. Step 5: Solve for x
    x = 4,025,750,151.15/73,321.02
  6. Step 6: Final answer
    x = 54,905.81

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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.