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Finding the Fourth Proportional to 125,906.40, 188,859.60 and 37,162.80

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Solution

The fourth proportional to 125,906.40, 188,859.60 and 37,162.80 is: 55,744.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,906.40 : 188,859.60 = 37,162.80 : x
  2. Step 2: Convert to fraction form
    125,906.40/188,859.60 = 37,162.80/x
  3. Step 3: Cross multiply
    125,906.40x = 188,859.60 × 37,162.80
  4. Step 4: Simplify right side
    125,906.40x = 7,018,551,542.88
  5. Step 5: Solve for x
    x = 7,018,551,542.88/125,906.40
  6. Step 6: Final answer
    x = 55,744.20

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1.5x scale

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.