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Finding the Fourth Proportional to 223,612.51, 335,185.43 and 90,584.59

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Solution

The fourth proportional to 223,612.51, 335,185.43 and 90,584.59 is: 135,782.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,612.51 : 335,185.43 = 90,584.59 : x
  2. Step 2: Convert to fraction form
    223,612.51/335,185.43 = 90,584.59/x
  3. Step 3: Cross multiply
    223,612.51x = 335,185.43 × 90,584.59
  4. Step 4: Simplify right side
    223,612.51x = 30,362,634,886.43
  5. Step 5: Solve for x
    x = 30,362,634,886.43/223,612.51
  6. Step 6: Final answer
    x = 135,782.36

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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.