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Finding the Fourth Proportional to 80,861.88, 121,316.28 and 33,468.24

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Solution

The fourth proportional to 80,861.88, 121,316.28 and 33,468.24 is: 50,212.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,861.88 : 121,316.28 = 33,468.24 : x
  2. Step 2: Convert to fraction form
    80,861.88/121,316.28 = 33,468.24/x
  3. Step 3: Cross multiply
    80,861.88x = 121,316.28 × 33,468.24
  4. Step 4: Simplify right side
    80,861.88x = 4,060,242,374.95
  5. Step 5: Solve for x
    x = 4,060,242,374.95/80,861.88
  6. Step 6: Final answer
    x = 50,212.07

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1.5x scale

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.