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Finding the Fourth Proportional to 88,422.58, 122,019.42 and 48,135.50

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Solution

The fourth proportional to 88,422.58, 122,019.42 and 48,135.50 is: 66,424.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,422.58 : 122,019.42 = 48,135.50 : x
  2. Step 2: Convert to fraction form
    88,422.58/122,019.42 = 48,135.50/x
  3. Step 3: Cross multiply
    88,422.58x = 122,019.42 × 48,135.50
  4. Step 4: Simplify right side
    88,422.58x = 5,873,465,791.41
  5. Step 5: Solve for x
    x = 5,873,465,791.41/88,422.58
  6. Step 6: Final answer
    x = 66,424.96

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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.