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Finding the Fourth Proportional to 125,604.48, 188,419.68 and 36,857.64

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Solution

The fourth proportional to 125,604.48, 188,419.68 and 36,857.64 is: 55,290.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,604.48 : 188,419.68 = 36,857.64 : x
  2. Step 2: Convert to fraction form
    125,604.48/188,419.68 = 36,857.64/x
  3. Step 3: Cross multiply
    125,604.48x = 188,419.68 × 36,857.64
  4. Step 4: Simplify right side
    125,604.48x = 6,944,704,734.36
  5. Step 5: Solve for x
    x = 6,944,704,734.36/125,604.48
  6. Step 6: Final answer
    x = 55,290.26

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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.