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Finding the Fourth Proportional to 73,474.40, 110,211.60 and 47,230.40

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Solution

The fourth proportional to 73,474.40, 110,211.60 and 47,230.40 is: 70,845.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,474.40 : 110,211.60 = 47,230.40 : x
  2. Step 2: Convert to fraction form
    73,474.40/110,211.60 = 47,230.40/x
  3. Step 3: Cross multiply
    73,474.40x = 110,211.60 × 47,230.40
  4. Step 4: Simplify right side
    73,474.40x = 5,205,337,952.64
  5. Step 5: Solve for x
    x = 5,205,337,952.64/73,474.40
  6. Step 6: Final answer
    x = 70,845.60

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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.