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Finding the Fourth Proportional to 69,220.86, 103,762.29 and 29,249.93

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Solution

The fourth proportional to 69,220.86, 103,762.29 and 29,249.93 is: 43,845.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,220.86 : 103,762.29 = 29,249.93 : x
  2. Step 2: Convert to fraction form
    69,220.86/103,762.29 = 29,249.93/x
  3. Step 3: Cross multiply
    69,220.86x = 103,762.29 × 29,249.93
  4. Step 4: Simplify right side
    69,220.86x = 3,035,039,459.73
  5. Step 5: Solve for x
    x = 3,035,039,459.73/69,220.86
  6. Step 6: Final answer
    x = 43,845.73

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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.