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Finding the Fourth Proportional to 100,859.99, 151,276.41 and 41,687.46

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Solution

The fourth proportional to 100,859.99, 151,276.41 and 41,687.46 is: 62,525.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,859.99 : 151,276.41 = 41,687.46 : x
  2. Step 2: Convert to fraction form
    100,859.99/151,276.41 = 41,687.46/x
  3. Step 3: Cross multiply
    100,859.99x = 151,276.41 × 41,687.46
  4. Step 4: Simplify right side
    100,859.99x = 6,306,329,290.82
  5. Step 5: Solve for x
    x = 6,306,329,290.82/100,859.99
  6. Step 6: Final answer
    x = 62,525.58

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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.