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Finding the Fourth Proportional to 214,581.02, 321,804.56 and 74,306.84

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Solution

The fourth proportional to 214,581.02, 321,804.56 and 74,306.84 is: 111,437.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,581.02 : 321,804.56 = 74,306.84 : x
  2. Step 2: Convert to fraction form
    214,581.02/321,804.56 = 74,306.84/x
  3. Step 3: Cross multiply
    214,581.02x = 321,804.56 × 74,306.84
  4. Step 4: Simplify right side
    214,581.02x = 23,912,279,951.19
  5. Step 5: Solve for x
    x = 23,912,279,951.19/214,581.02
  6. Step 6: Final answer
    x = 111,437.07

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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.