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Finding the Fourth Proportional to 58,891.38, 88,365.41 and 29,311.80

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Solution

The fourth proportional to 58,891.38, 88,365.41 and 29,311.80 is: 43,981.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,891.38 : 88,365.41 = 29,311.80 : x
  2. Step 2: Convert to fraction form
    58,891.38/88,365.41 = 29,311.80/x
  3. Step 3: Cross multiply
    58,891.38x = 88,365.41 × 29,311.80
  4. Step 4: Simplify right side
    58,891.38x = 2,590,149,224.84
  5. Step 5: Solve for x
    x = 2,590,149,224.84/58,891.38
  6. Step 6: Final answer
    x = 43,981.81

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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.