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Finding the Fourth Proportional to 100,682.60, 150,894.30 and 61,197.80

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Solution

The fourth proportional to 100,682.60, 150,894.30 and 61,197.80 is: 91,717.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,682.60 : 150,894.30 = 61,197.80 : x
  2. Step 2: Convert to fraction form
    100,682.60/150,894.30 = 61,197.80/x
  3. Step 3: Cross multiply
    100,682.60x = 150,894.30 × 61,197.80
  4. Step 4: Simplify right side
    100,682.60x = 9,234,399,192.54
  5. Step 5: Solve for x
    x = 9,234,399,192.54/100,682.60
  6. Step 6: Final answer
    x = 91,717.93

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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.