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Finding the Fourth Proportional to 125,809.88, 188,716.44 and 37,043.20

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Solution

The fourth proportional to 125,809.88, 188,716.44 and 37,043.20 is: 55,565.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,809.88 : 188,716.44 = 37,043.20 : x
  2. Step 2: Convert to fraction form
    125,809.88/188,716.44 = 37,043.20/x
  3. Step 3: Cross multiply
    125,809.88x = 188,716.44 × 37,043.20
  4. Step 4: Simplify right side
    125,809.88x = 6,990,660,830.21
  5. Step 5: Solve for x
    x = 6,990,660,830.21/125,809.88
  6. Step 6: Final answer
    x = 55,565.28

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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.