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Finding the Fourth Proportional to 162,067.68, 223,664.63 and 90,461.66

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Solution

The fourth proportional to 162,067.68, 223,664.63 and 90,461.66 is: 124,843.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,067.68 : 223,664.63 = 90,461.66 : x
  2. Step 2: Convert to fraction form
    162,067.68/223,664.63 = 90,461.66/x
  3. Step 3: Cross multiply
    162,067.68x = 223,664.63 × 90,461.66
  4. Step 4: Simplify right side
    162,067.68x = 20,233,073,713.09
  5. Step 5: Solve for x
    x = 20,233,073,713.09/162,067.68
  6. Step 6: Final answer
    x = 124,843.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.