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Finding the Fourth Proportional to 223,555.64, 335,366.81 and 73,811.75

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Solution

The fourth proportional to 223,555.64, 335,366.81 and 73,811.75 is: 110,728.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,555.64 : 335,366.81 = 73,811.75 : x
  2. Step 2: Convert to fraction form
    223,555.64/335,366.81 = 73,811.75/x
  3. Step 3: Cross multiply
    223,555.64x = 335,366.81 × 73,811.75
  4. Step 4: Simplify right side
    223,555.64x = 24,754,011,138.02
  5. Step 5: Solve for x
    x = 24,754,011,138.02/223,555.64
  6. Step 6: Final answer
    x = 110,728.64

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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.