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Finding the Fourth Proportional to 63,114.40, 94,748.40 and 47,408.80

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Solution

The fourth proportional to 63,114.40, 94,748.40 and 47,408.80 is: 71,170.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,114.40 : 94,748.40 = 47,408.80 : x
  2. Step 2: Convert to fraction form
    63,114.40/94,748.40 = 47,408.80/x
  3. Step 3: Cross multiply
    63,114.40x = 94,748.40 × 47,408.80
  4. Step 4: Simplify right side
    63,114.40x = 4,491,907,945.92
  5. Step 5: Solve for x
    x = 4,491,907,945.92/63,114.40
  6. Step 6: Final answer
    x = 71,170.89

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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.