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Finding the Fourth Proportional to 73,136.97, 100,931.01 and 41,310.60

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Solution

The fourth proportional to 73,136.97, 100,931.01 and 41,310.60 is: 57,009.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,136.97 : 100,931.01 = 41,310.60 : x
  2. Step 2: Convert to fraction form
    73,136.97/100,931.01 = 41,310.60/x
  3. Step 3: Cross multiply
    73,136.97x = 100,931.01 × 41,310.60
  4. Step 4: Simplify right side
    73,136.97x = 4,169,520,581.71
  5. Step 5: Solve for x
    x = 4,169,520,581.71/73,136.97
  6. Step 6: Final answer
    x = 57,009.75

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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.