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Finding the Fourth Proportional to 125,618.42, 188,410.62 and 36,855.38

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Solution

The fourth proportional to 125,618.42, 188,410.62 and 36,855.38 is: 55,278.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,618.42 : 188,410.62 = 36,855.38 : x
  2. Step 2: Convert to fraction form
    125,618.42/188,410.62 = 36,855.38/x
  3. Step 3: Cross multiply
    125,618.42x = 188,410.62 × 36,855.38
  4. Step 4: Simplify right side
    125,618.42x = 6,943,944,996.14
  5. Step 5: Solve for x
    x = 6,943,944,996.14/125,618.42
  6. Step 6: Final answer
    x = 55,278.08

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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.