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Finding the Fourth Proportional to 223,761.50, 335,643.15 and 90,644.27

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Solution

The fourth proportional to 223,761.50, 335,643.15 and 90,644.27 is: 135,966.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,761.50 : 335,643.15 = 90,644.27 : x
  2. Step 2: Convert to fraction form
    223,761.50/335,643.15 = 90,644.27/x
  3. Step 3: Cross multiply
    223,761.50x = 335,643.15 × 90,644.27
  4. Step 4: Simplify right side
    223,761.50x = 30,424,127,859.03
  5. Step 5: Solve for x
    x = 30,424,127,859.03/223,761.50
  6. Step 6: Final answer
    x = 135,966.77

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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.