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Finding the Fourth Proportional to 125,676.14, 188,516.64 and 100,599.80

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Solution

The fourth proportional to 125,676.14, 188,516.64 and 100,599.80 is: 150,901.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,676.14 : 188,516.64 = 100,599.80 : x
  2. Step 2: Convert to fraction form
    125,676.14/188,516.64 = 100,599.80/x
  3. Step 3: Cross multiply
    125,676.14x = 188,516.64 × 100,599.80
  4. Step 4: Simplify right side
    125,676.14x = 18,964,736,280.67
  5. Step 5: Solve for x
    x = 18,964,736,280.67/125,676.14
  6. Step 6: Final answer
    x = 150,901.65

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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.