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Finding the Fourth Proportional to 276,797.60, 415,132.68 and 108,321.92

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Solution

The fourth proportional to 276,797.60, 415,132.68 and 108,321.92 is: 162,457.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,797.60 : 415,132.68 = 108,321.92 : x
  2. Step 2: Convert to fraction form
    276,797.60/415,132.68 = 108,321.92/x
  3. Step 3: Cross multiply
    276,797.60x = 415,132.68 × 108,321.92
  4. Step 4: Simplify right side
    276,797.60x = 44,967,968,952.35
  5. Step 5: Solve for x
    x = 44,967,968,952.35/276,797.60
  6. Step 6: Final answer
    x = 162,457.94

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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.