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Finding the Fourth Proportional to 117,000.97, 175,530.75 and 67,137.37

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Solution

The fourth proportional to 117,000.97, 175,530.75 and 67,137.37 is: 100,722.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,000.97 : 175,530.75 = 67,137.37 : x
  2. Step 2: Convert to fraction form
    117,000.97/175,530.75 = 67,137.37/x
  3. Step 3: Cross multiply
    117,000.97x = 175,530.75 × 67,137.37
  4. Step 4: Simplify right side
    117,000.97x = 11,784,672,909.13
  5. Step 5: Solve for x
    x = 11,784,672,909.13/117,000.97
  6. Step 6: Final answer
    x = 100,722.87

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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.