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Finding the Fourth Proportional to 190,176.56, 285,247.84 and 57,086.56

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Solution

The fourth proportional to 190,176.56, 285,247.84 and 57,086.56 is: 85,624.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,176.56 : 285,247.84 = 57,086.56 : x
  2. Step 2: Convert to fraction form
    190,176.56/285,247.84 = 57,086.56/x
  3. Step 3: Cross multiply
    190,176.56x = 285,247.84 × 57,086.56
  4. Step 4: Simplify right side
    190,176.56x = 16,283,817,933.03
  5. Step 5: Solve for x
    x = 16,283,817,933.03/190,176.56
  6. Step 6: Final answer
    x = 85,624.74

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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.