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Finding the Fourth Proportional to 125,938.60, 188,863.80 and 37,168.60

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Solution

The fourth proportional to 125,938.60, 188,863.80 and 37,168.60 is: 55,739.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,938.60 : 188,863.80 = 37,168.60 : x
  2. Step 2: Convert to fraction form
    125,938.60/188,863.80 = 37,168.60/x
  3. Step 3: Cross multiply
    125,938.60x = 188,863.80 × 37,168.60
  4. Step 4: Simplify right side
    125,938.60x = 7,019,803,036.68
  5. Step 5: Solve for x
    x = 7,019,803,036.68/125,938.60
  6. Step 6: Final answer
    x = 55,739.88

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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.