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Finding the Fourth Proportional to 92,720.85, 139,092.15 and 29,518.85

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Solution

The fourth proportional to 92,720.85, 139,092.15 and 29,518.85 is: 44,281.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,720.85 : 139,092.15 = 29,518.85 : x
  2. Step 2: Convert to fraction form
    92,720.85/139,092.15 = 29,518.85/x
  3. Step 3: Cross multiply
    92,720.85x = 139,092.15 × 29,518.85
  4. Step 4: Simplify right side
    92,720.85x = 4,105,839,616.57
  5. Step 5: Solve for x
    x = 4,105,839,616.57/92,720.85
  6. Step 6: Final answer
    x = 44,281.73

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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.