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Finding the Fourth Proportional to 88,928.90, 133,069.35 and 65,600.90

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Solution

The fourth proportional to 88,928.90, 133,069.35 and 65,600.90 is: 98,162.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,928.90 : 133,069.35 = 65,600.90 : x
  2. Step 2: Convert to fraction form
    88,928.90/133,069.35 = 65,600.90/x
  3. Step 3: Cross multiply
    88,928.90x = 133,069.35 × 65,600.90
  4. Step 4: Simplify right side
    88,928.90x = 8,729,469,122.42
  5. Step 5: Solve for x
    x = 8,729,469,122.42/88,928.90
  6. Step 6: Final answer
    x = 98,162.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.