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Finding the Fourth Proportional to 223,436.31, 335,166.89 and 73,670.55

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Solution

The fourth proportional to 223,436.31, 335,166.89 and 73,670.55 is: 110,509.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,436.31 : 335,166.89 = 73,670.55 : x
  2. Step 2: Convert to fraction form
    223,436.31/335,166.89 = 73,670.55/x
  3. Step 3: Cross multiply
    223,436.31x = 335,166.89 × 73,670.55
  4. Step 4: Simplify right side
    223,436.31x = 24,691,928,759.74
  5. Step 5: Solve for x
    x = 24,691,928,759.74/223,436.31
  6. Step 6: Final answer
    x = 110,509.92

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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.