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Finding the Fourth Proportional to 104,139.61, 156,177.12 and 37,571.09

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Solution

The fourth proportional to 104,139.61, 156,177.12 and 37,571.09 is: 56,344.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,139.61 : 156,177.12 = 37,571.09 : x
  2. Step 2: Convert to fraction form
    104,139.61/156,177.12 = 37,571.09/x
  3. Step 3: Cross multiply
    104,139.61x = 156,177.12 × 37,571.09
  4. Step 4: Simplify right side
    104,139.61x = 5,867,743,991.47
  5. Step 5: Solve for x
    x = 5,867,743,991.47/104,139.61
  6. Step 6: Final answer
    x = 56,344.98

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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.