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Finding the Fourth Proportional to 223,605.61, 335,441.64 and 73,861.72

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Solution

The fourth proportional to 223,605.61, 335,441.64 and 73,861.72 is: 110,803.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,605.61 : 335,441.64 = 73,861.72 : x
  2. Step 2: Convert to fraction form
    223,605.61/335,441.64 = 73,861.72/x
  3. Step 3: Cross multiply
    223,605.61x = 335,441.64 × 73,861.72
  4. Step 4: Simplify right side
    223,605.61x = 24,776,296,490.02
  5. Step 5: Solve for x
    x = 24,776,296,490.02/223,605.61
  6. Step 6: Final answer
    x = 110,803.55

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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.