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Finding the Fourth Proportional to 223,979.96, 335,853.30 and 66,187.10

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Solution

The fourth proportional to 223,979.96, 335,853.30 and 66,187.10 is: 99,246.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,979.96 : 335,853.30 = 66,187.10 : x
  2. Step 2: Convert to fraction form
    223,979.96/335,853.30 = 66,187.10/x
  3. Step 3: Cross multiply
    223,979.96x = 335,853.30 × 66,187.10
  4. Step 4: Simplify right side
    223,979.96x = 22,229,155,952.43
  5. Step 5: Solve for x
    x = 22,229,155,952.43/223,979.96
  6. Step 6: Final answer
    x = 99,246.18

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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.