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Finding the Fourth Proportional to 297,321.08, 445,977.70 and 72,683.48

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Solution

The fourth proportional to 297,321.08, 445,977.70 and 72,683.48 is: 109,024.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,321.08 : 445,977.70 = 72,683.48 : x
  2. Step 2: Convert to fraction form
    297,321.08/445,977.70 = 72,683.48/x
  3. Step 3: Cross multiply
    297,321.08x = 445,977.70 × 72,683.48
  4. Step 4: Simplify right side
    297,321.08x = 32,415,211,238.40
  5. Step 5: Solve for x
    x = 32,415,211,238.40/297,321.08
  6. Step 6: Final answer
    x = 109,024.26

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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.