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Finding the Fourth Proportional to 132,891.20, 199,346.40 and 44,206.40

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Solution

The fourth proportional to 132,891.20, 199,346.40 and 44,206.40 is: 66,312.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,891.20 : 199,346.40 = 44,206.40 : x
  2. Step 2: Convert to fraction form
    132,891.20/199,346.40 = 44,206.40/x
  3. Step 3: Cross multiply
    132,891.20x = 199,346.40 × 44,206.40
  4. Step 4: Simplify right side
    132,891.20x = 8,812,386,696.96
  5. Step 5: Solve for x
    x = 8,812,386,696.96/132,891.20
  6. Step 6: Final answer
    x = 66,312.79

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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.