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Finding the Fourth Proportional to 125,765.91, 188,427.41 and 118,274.06

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Solution

The fourth proportional to 125,765.91, 188,427.41 and 118,274.06 is: 177,202.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,765.91 : 188,427.41 = 118,274.06 : x
  2. Step 2: Convert to fraction form
    125,765.91/188,427.41 = 118,274.06/x
  3. Step 3: Cross multiply
    125,765.91x = 188,427.41 × 118,274.06
  4. Step 4: Simplify right side
    125,765.91x = 22,286,074,795.98
  5. Step 5: Solve for x
    x = 22,286,074,795.98/125,765.91
  6. Step 6: Final answer
    x = 177,202.83

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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.