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Finding the Fourth Proportional to 248,849.20, 373,273.80 and 91,082.80

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Solution

The fourth proportional to 248,849.20, 373,273.80 and 91,082.80 is: 136,624.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,849.20 : 373,273.80 = 91,082.80 : x
  2. Step 2: Convert to fraction form
    248,849.20/373,273.80 = 91,082.80/x
  3. Step 3: Cross multiply
    248,849.20x = 373,273.80 × 91,082.80
  4. Step 4: Simplify right side
    248,849.20x = 33,998,822,870.64
  5. Step 5: Solve for x
    x = 33,998,822,870.64/248,849.20
  6. Step 6: Final answer
    x = 136,624.20

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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.