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Finding the Fourth Proportional to 73,712.90, 110,604.90 and 36,252.65

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Solution

The fourth proportional to 73,712.90, 110,604.90 and 36,252.65 is: 54,396.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,712.90 : 110,604.90 = 36,252.65 : x
  2. Step 2: Convert to fraction form
    73,712.90/110,604.90 = 36,252.65/x
  3. Step 3: Cross multiply
    73,712.90x = 110,604.90 × 36,252.65
  4. Step 4: Simplify right side
    73,712.90x = 4,009,720,727.99
  5. Step 5: Solve for x
    x = 4,009,720,727.99/73,712.90
  6. Step 6: Final answer
    x = 54,396.46

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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.