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Finding the Fourth Proportional to 132,973.80, 199,460.70 and 109,626.60

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Solution

The fourth proportional to 132,973.80, 199,460.70 and 109,626.60 is: 164,439.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,973.80 : 199,460.70 = 109,626.60 : x
  2. Step 2: Convert to fraction form
    132,973.80/199,460.70 = 109,626.60/x
  3. Step 3: Cross multiply
    132,973.80x = 199,460.70 × 109,626.60
  4. Step 4: Simplify right side
    132,973.80x = 21,866,198,374.62
  5. Step 5: Solve for x
    x = 21,866,198,374.62/132,973.80
  6. Step 6: Final answer
    x = 164,439.90

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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.