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Finding the Fourth Proportional to 73,899.40, 110,849.10 and 54,216.40

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Solution

The fourth proportional to 73,899.40, 110,849.10 and 54,216.40 is: 81,324.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,899.40 : 110,849.10 = 54,216.40 : x
  2. Step 2: Convert to fraction form
    73,899.40/110,849.10 = 54,216.40/x
  3. Step 3: Cross multiply
    73,899.40x = 110,849.10 × 54,216.40
  4. Step 4: Simplify right side
    73,899.40x = 6,009,839,145.24
  5. Step 5: Solve for x
    x = 6,009,839,145.24/73,899.40
  6. Step 6: Final answer
    x = 81,324.60

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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.