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Finding the Fourth Proportional to 109,221.84, 163,832.76 and 30,336.08

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Solution

The fourth proportional to 109,221.84, 163,832.76 and 30,336.08 is: 45,504.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,221.84 : 163,832.76 = 30,336.08 : x
  2. Step 2: Convert to fraction form
    109,221.84/163,832.76 = 30,336.08/x
  3. Step 3: Cross multiply
    109,221.84x = 163,832.76 × 30,336.08
  4. Step 4: Simplify right side
    109,221.84x = 4,970,043,713.98
  5. Step 5: Solve for x
    x = 4,970,043,713.98/109,221.84
  6. Step 6: Final answer
    x = 45,504.12

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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.