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Finding the Fourth Proportional to 223,818.30, 335,727.45 and 220,127.74

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Solution

The fourth proportional to 223,818.30, 335,727.45 and 220,127.74 is: 330,191.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,818.30 : 335,727.45 = 220,127.74 : x
  2. Step 2: Convert to fraction form
    223,818.30/335,727.45 = 220,127.74/x
  3. Step 3: Cross multiply
    223,818.30x = 335,727.45 × 220,127.74
  4. Step 4: Simplify right side
    223,818.30x = 73,902,923,985.14
  5. Step 5: Solve for x
    x = 73,902,923,985.14/223,818.30
  6. Step 6: Final answer
    x = 330,191.61

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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.