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Finding the Fourth Proportional to 100,610.26, 150,945.57 and 40,607.87

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Solution

The fourth proportional to 100,610.26, 150,945.57 and 40,607.87 is: 60,923.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,610.26 : 150,945.57 = 40,607.87 : x
  2. Step 2: Convert to fraction form
    100,610.26/150,945.57 = 40,607.87/x
  3. Step 3: Cross multiply
    100,610.26x = 150,945.57 × 40,607.87
  4. Step 4: Simplify right side
    100,610.26x = 6,129,577,328.91
  5. Step 5: Solve for x
    x = 6,129,577,328.91/100,610.26
  6. Step 6: Final answer
    x = 60,923.98

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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.