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Finding the Fourth Proportional to 196,660.40, 295,144.20 and 91,492.40

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Solution

The fourth proportional to 196,660.40, 295,144.20 and 91,492.40 is: 137,310.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,660.40 : 295,144.20 = 91,492.40 : x
  2. Step 2: Convert to fraction form
    196,660.40/295,144.20 = 91,492.40/x
  3. Step 3: Cross multiply
    196,660.40x = 295,144.20 × 91,492.40
  4. Step 4: Simplify right side
    196,660.40x = 27,003,451,204.08
  5. Step 5: Solve for x
    x = 27,003,451,204.08/196,660.40
  6. Step 6: Final answer
    x = 137,310.06

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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.