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Finding the Fourth Proportional to 92,744.88, 139,128.12 and 29,542.80

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Solution

The fourth proportional to 92,744.88, 139,128.12 and 29,542.80 is: 44,317.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,744.88 : 139,128.12 = 29,542.80 : x
  2. Step 2: Convert to fraction form
    92,744.88/139,128.12 = 29,542.80/x
  3. Step 3: Cross multiply
    92,744.88x = 139,128.12 × 29,542.80
  4. Step 4: Simplify right side
    92,744.88x = 4,110,234,223.54
  5. Step 5: Solve for x
    x = 4,110,234,223.54/92,744.88
  6. Step 6: Final answer
    x = 44,317.64

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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.