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Finding the Fourth Proportional to 291,578.10, 437,426.37 and 111,650.70

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Solution

The fourth proportional to 291,578.10, 437,426.37 and 111,650.70 is: 167,498.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,578.10 : 437,426.37 = 111,650.70 : x
  2. Step 2: Convert to fraction form
    291,578.10/437,426.37 = 111,650.70/x
  3. Step 3: Cross multiply
    291,578.10x = 437,426.37 × 111,650.70
  4. Step 4: Simplify right side
    291,578.10x = 48,838,960,408.96
  5. Step 5: Solve for x
    x = 48,838,960,408.96/291,578.10
  6. Step 6: Final answer
    x = 167,498.73

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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.