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Finding the Fourth Proportional to 53,136.25, 73,328.03 and 29,262.88

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Solution

The fourth proportional to 53,136.25, 73,328.03 and 29,262.88 is: 40,382.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,136.25 : 73,328.03 = 29,262.88 : x
  2. Step 2: Convert to fraction form
    53,136.25/73,328.03 = 29,262.88/x
  3. Step 3: Cross multiply
    53,136.25x = 73,328.03 × 29,262.88
  4. Step 4: Simplify right side
    53,136.25x = 2,145,789,342.53
  5. Step 5: Solve for x
    x = 2,145,789,342.53/53,136.25
  6. Step 6: Final answer
    x = 40,382.78

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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.