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Finding the Fourth Proportional to 88,390.87, 122,024.60 and 68,202.43

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Solution

The fourth proportional to 88,390.87, 122,024.60 and 68,202.43 is: 94,154.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,390.87 : 122,024.60 = 68,202.43 : x
  2. Step 2: Convert to fraction form
    88,390.87/122,024.60 = 68,202.43/x
  3. Step 3: Cross multiply
    88,390.87x = 122,024.60 × 68,202.43
  4. Step 4: Simplify right side
    88,390.87x = 8,322,374,239.78
  5. Step 5: Solve for x
    x = 8,322,374,239.78/88,390.87
  6. Step 6: Final answer
    x = 94,154.23

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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.