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Finding the Fourth Proportional to 73,321.60, 109,993.12 and 26,563.52

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Solution

The fourth proportional to 73,321.60, 109,993.12 and 26,563.52 is: 39,849.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,321.60 : 109,993.12 = 26,563.52 : x
  2. Step 2: Convert to fraction form
    73,321.60/109,993.12 = 26,563.52/x
  3. Step 3: Cross multiply
    73,321.60x = 109,993.12 × 26,563.52
  4. Step 4: Simplify right side
    73,321.60x = 2,921,804,442.98
  5. Step 5: Solve for x
    x = 2,921,804,442.98/73,321.60
  6. Step 6: Final answer
    x = 39,849.16

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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.