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Finding the Fourth Proportional to 101,136.74, 151,724.61 and 38,802.38

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Solution

The fourth proportional to 101,136.74, 151,724.61 and 38,802.38 is: 58,211.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,136.74 : 151,724.61 = 38,802.38 : x
  2. Step 2: Convert to fraction form
    101,136.74/151,724.61 = 38,802.38/x
  3. Step 3: Cross multiply
    101,136.74x = 151,724.61 × 38,802.38
  4. Step 4: Simplify right side
    101,136.74x = 5,887,275,213.95
  5. Step 5: Solve for x
    x = 5,887,275,213.95/101,136.74
  6. Step 6: Final answer
    x = 58,211.05

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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.