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Finding the Fourth Proportional to 262,894.61, 394,408.35 and 73,354.86

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Solution

The fourth proportional to 262,894.61, 394,408.35 and 73,354.86 is: 110,050.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,894.61 : 394,408.35 = 73,354.86 : x
  2. Step 2: Convert to fraction form
    262,894.61/394,408.35 = 73,354.86/x
  3. Step 3: Cross multiply
    262,894.61x = 394,408.35 × 73,354.86
  4. Step 4: Simplify right side
    262,894.61x = 28,931,767,542.97
  5. Step 5: Solve for x
    x = 28,931,767,542.97/262,894.61
  6. Step 6: Final answer
    x = 110,050.82

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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.