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Finding the Fourth Proportional to 125,891.12, 188,855.13 and 37,133.08

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Solution

The fourth proportional to 125,891.12, 188,855.13 and 37,133.08 is: 55,705.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,891.12 : 188,855.13 = 37,133.08 : x
  2. Step 2: Convert to fraction form
    125,891.12/188,855.13 = 37,133.08/x
  3. Step 3: Cross multiply
    125,891.12x = 188,855.13 × 37,133.08
  4. Step 4: Simplify right side
    125,891.12x = 7,012,772,650.70
  5. Step 5: Solve for x
    x = 7,012,772,650.70/125,891.12
  6. Step 6: Final answer
    x = 55,705.06

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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.