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Finding the Fourth Proportional to 193,286.88, 289,885.44 and 53,056.80

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Solution

The fourth proportional to 193,286.88, 289,885.44 and 53,056.80 is: 79,572.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,286.88 : 289,885.44 = 53,056.80 : x
  2. Step 2: Convert to fraction form
    193,286.88/289,885.44 = 53,056.80/x
  3. Step 3: Cross multiply
    193,286.88x = 289,885.44 × 53,056.80
  4. Step 4: Simplify right side
    193,286.88x = 15,380,393,812.99
  5. Step 5: Solve for x
    x = 15,380,393,812.99/193,286.88
  6. Step 6: Final answer
    x = 79,572.88

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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.