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Finding the Fourth Proportional to 223,431.02, 335,143.60 and 54,952.80

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Solution

The fourth proportional to 223,431.02, 335,143.60 and 54,952.80 is: 82,428.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,431.02 : 335,143.60 = 54,952.80 : x
  2. Step 2: Convert to fraction form
    223,431.02/335,143.60 = 54,952.80/x
  3. Step 3: Cross multiply
    223,431.02x = 335,143.60 × 54,952.80
  4. Step 4: Simplify right side
    223,431.02x = 18,417,079,222.08
  5. Step 5: Solve for x
    x = 18,417,079,222.08/223,431.02
  6. Step 6: Final answer
    x = 82,428.48

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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.