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Finding the Fourth Proportional to 92,745.96, 139,121.28 and 29,565.12

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Solution

The fourth proportional to 92,745.96, 139,121.28 and 29,565.12 is: 44,348.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,745.96 : 139,121.28 = 29,565.12 : x
  2. Step 2: Convert to fraction form
    92,745.96/139,121.28 = 29,565.12/x
  3. Step 3: Cross multiply
    92,745.96x = 139,121.28 × 29,565.12
  4. Step 4: Simplify right side
    92,745.96x = 4,113,137,337.75
  5. Step 5: Solve for x
    x = 4,113,137,337.75/92,745.96
  6. Step 6: Final answer
    x = 44,348.43

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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.