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Finding the Fourth Proportional to 73,266.40, 109,867.20 and 33,803.20

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Solution

The fourth proportional to 73,266.40, 109,867.20 and 33,803.20 is: 50,689.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,266.40 : 109,867.20 = 33,803.20 : x
  2. Step 2: Convert to fraction form
    73,266.40/109,867.20 = 33,803.20/x
  3. Step 3: Cross multiply
    73,266.40x = 109,867.20 × 33,803.20
  4. Step 4: Simplify right side
    73,266.40x = 3,713,862,935.04
  5. Step 5: Solve for x
    x = 3,713,862,935.04/73,266.40
  6. Step 6: Final answer
    x = 50,689.85

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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.