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Finding the Fourth Proportional to 223,782.39, 335,813.49 and 90,663.33

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Solution

The fourth proportional to 223,782.39, 335,813.49 and 90,663.33 is: 136,051.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,782.39 : 335,813.49 = 90,663.33 : x
  2. Step 2: Convert to fraction form
    223,782.39/335,813.49 = 90,663.33/x
  3. Step 3: Cross multiply
    223,782.39x = 335,813.49 × 90,663.33
  4. Step 4: Simplify right side
    223,782.39x = 30,445,969,262.32
  5. Step 5: Solve for x
    x = 30,445,969,262.32/223,782.39
  6. Step 6: Final answer
    x = 136,051.68

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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.