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Finding the Fourth Proportional to 88,657.81, 122,392.92 and 68,469.37

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Solution

The fourth proportional to 88,657.81, 122,392.92 and 68,469.37 is: 94,522.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,657.81 : 122,392.92 = 68,469.37 : x
  2. Step 2: Convert to fraction form
    88,657.81/122,392.92 = 68,469.37/x
  3. Step 3: Cross multiply
    88,657.81x = 122,392.92 × 68,469.37
  4. Step 4: Simplify right side
    88,657.81x = 8,380,166,075.64
  5. Step 5: Solve for x
    x = 8,380,166,075.64/88,657.81
  6. Step 6: Final answer
    x = 94,522.60

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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.