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Finding the Fourth Proportional to 47,745.54, 71,609.04 and 45,374.67

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Solution

The fourth proportional to 47,745.54, 71,609.04 and 45,374.67 is: 68,053.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,745.54 : 71,609.04 = 45,374.67 : x
  2. Step 2: Convert to fraction form
    47,745.54/71,609.04 = 45,374.67/x
  3. Step 3: Cross multiply
    47,745.54x = 71,609.04 × 45,374.67
  4. Step 4: Simplify right side
    47,745.54x = 3,249,236,559.02
  5. Step 5: Solve for x
    x = 3,249,236,559.02/47,745.54
  6. Step 6: Final answer
    x = 68,053.20

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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.