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Finding the Fourth Proportional to 100,349.88, 150,495.66 and 65,474.52

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Solution

The fourth proportional to 100,349.88, 150,495.66 and 65,474.52 is: 98,192.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,349.88 : 150,495.66 = 65,474.52 : x
  2. Step 2: Convert to fraction form
    100,349.88/150,495.66 = 65,474.52/x
  3. Step 3: Cross multiply
    100,349.88x = 150,495.66 × 65,474.52
  4. Step 4: Simplify right side
    100,349.88x = 9,853,631,100.58
  5. Step 5: Solve for x
    x = 9,853,631,100.58/100,349.88
  6. Step 6: Final answer
    x = 98,192.75

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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.