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Finding the Fourth Proportional to 273,336.12, 409,989.60 and 73,653.30

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Solution

The fourth proportional to 273,336.12, 409,989.60 and 73,653.30 is: 110,476.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,336.12 : 409,989.60 = 73,653.30 : x
  2. Step 2: Convert to fraction form
    273,336.12/409,989.60 = 73,653.30/x
  3. Step 3: Cross multiply
    273,336.12x = 409,989.60 × 73,653.30
  4. Step 4: Simplify right side
    273,336.12x = 30,197,087,005.68
  5. Step 5: Solve for x
    x = 30,197,087,005.68/273,336.12
  6. Step 6: Final answer
    x = 110,476.02

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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.