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Finding the Fourth Proportional to 63,431.44, 95,148 and 30,154.84

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Solution

The fourth proportional to 63,431.44, 95,148 and 30,154.84 is: 45,232.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,431.44 : 95,148 = 30,154.84 : x
  2. Step 2: Convert to fraction form
    63,431.44/95,148 = 30,154.84/x
  3. Step 3: Cross multiply
    63,431.44x = 95,148 × 30,154.84
  4. Step 4: Simplify right side
    63,431.44x = 2,869,172,716.32
  5. Step 5: Solve for x
    x = 2,869,172,716.32/63,431.44
  6. Step 6: Final answer
    x = 45,232.66

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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.