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Finding the Fourth Proportional to 125,910.88, 188,806.08 and 73,335.36

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Solution

The fourth proportional to 125,910.88, 188,806.08 and 73,335.36 is: 109,967.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,910.88 : 188,806.08 = 73,335.36 : x
  2. Step 2: Convert to fraction form
    125,910.88/188,806.08 = 73,335.36/x
  3. Step 3: Cross multiply
    125,910.88x = 188,806.08 × 73,335.36
  4. Step 4: Simplify right side
    125,910.88x = 13,846,161,846.99
  5. Step 5: Solve for x
    x = 13,846,161,846.99/125,910.88
  6. Step 6: Final answer
    x = 109,967.95

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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.