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Finding the Fourth Proportional to 99,716.87, 149,531.49 and 37,343.63

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Solution

The fourth proportional to 99,716.87, 149,531.49 and 37,343.63 is: 55,999.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,716.87 : 149,531.49 = 37,343.63 : x
  2. Step 2: Convert to fraction form
    99,716.87/149,531.49 = 37,343.63/x
  3. Step 3: Cross multiply
    99,716.87x = 149,531.49 × 37,343.63
  4. Step 4: Simplify right side
    99,716.87x = 5,584,048,635.91
  5. Step 5: Solve for x
    x = 5,584,048,635.91/99,716.87
  6. Step 6: Final answer
    x = 55,999.04

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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.