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Finding the Fourth Proportional to 98,367.22, 135,762.51 and 55,939.42

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Solution

The fourth proportional to 98,367.22, 135,762.51 and 55,939.42 is: 77,205.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,367.22 : 135,762.51 = 55,939.42 : x
  2. Step 2: Convert to fraction form
    98,367.22/135,762.51 = 55,939.42/x
  3. Step 3: Cross multiply
    98,367.22x = 135,762.51 × 55,939.42
  4. Step 4: Simplify right side
    98,367.22x = 7,594,476,067.14
  5. Step 5: Solve for x
    x = 7,594,476,067.14/98,367.22
  6. Step 6: Final answer
    x = 77,205.35

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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.