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Finding the Fourth Proportional to 92,739.48, 139,119.42 and 29,544.90

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Solution

The fourth proportional to 92,739.48, 139,119.42 and 29,544.90 is: 44,320.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,739.48 : 139,119.42 = 29,544.90 : x
  2. Step 2: Convert to fraction form
    92,739.48/139,119.42 = 29,544.90/x
  3. Step 3: Cross multiply
    92,739.48x = 139,119.42 × 29,544.90
  4. Step 4: Simplify right side
    92,739.48x = 4,110,269,351.96
  5. Step 5: Solve for x
    x = 4,110,269,351.96/92,739.48
  6. Step 6: Final answer
    x = 44,320.60

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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.