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Finding the Fourth Proportional to 50,136.48, 69,187.50 and 29,981.90

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Solution

The fourth proportional to 50,136.48, 69,187.50 and 29,981.90 is: 41,374.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,136.48 : 69,187.50 = 29,981.90 : x
  2. Step 2: Convert to fraction form
    50,136.48/69,187.50 = 29,981.90/x
  3. Step 3: Cross multiply
    50,136.48x = 69,187.50 × 29,981.90
  4. Step 4: Simplify right side
    50,136.48x = 2,074,372,879.22
  5. Step 5: Solve for x
    x = 2,074,372,879.22/50,136.48
  6. Step 6: Final answer
    x = 41,374.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.