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Finding the Fourth Proportional to 73,656.90, 110,412.45 and 36,186.30

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Solution

The fourth proportional to 73,656.90, 110,412.45 and 36,186.30 is: 54,243.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,656.90 : 110,412.45 = 36,186.30 : x
  2. Step 2: Convert to fraction form
    73,656.90/110,412.45 = 36,186.30/x
  3. Step 3: Cross multiply
    73,656.90x = 110,412.45 × 36,186.30
  4. Step 4: Simplify right side
    73,656.90x = 3,995,418,039.44
  5. Step 5: Solve for x
    x = 3,995,418,039.44/73,656.90
  6. Step 6: Final answer
    x = 54,243.64

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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.