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Finding the Fourth Proportional to 88,668.88, 122,378.88 and 52,861.24

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Solution

The fourth proportional to 88,668.88, 122,378.88 and 52,861.24 is: 72,957.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,668.88 : 122,378.88 = 52,861.24 : x
  2. Step 2: Convert to fraction form
    88,668.88/122,378.88 = 52,861.24/x
  3. Step 3: Cross multiply
    88,668.88x = 122,378.88 × 52,861.24
  4. Step 4: Simplify right side
    88,668.88x = 6,469,099,346.61
  5. Step 5: Solve for x
    x = 6,469,099,346.61/88,668.88
  6. Step 6: Final answer
    x = 72,957.95

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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.