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Finding the Fourth Proportional to 125,800.27, 188,645.01 and 66,622.11

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Solution

The fourth proportional to 125,800.27, 188,645.01 and 66,622.11 is: 99,903.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,800.27 : 188,645.01 = 66,622.11 : x
  2. Step 2: Convert to fraction form
    125,800.27/188,645.01 = 66,622.11/x
  3. Step 3: Cross multiply
    125,800.27x = 188,645.01 × 66,622.11
  4. Step 4: Simplify right side
    125,800.27x = 12,567,928,274.06
  5. Step 5: Solve for x
    x = 12,567,928,274.06/125,800.27
  6. Step 6: Final answer
    x = 99,903.83

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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.