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Finding the Fourth Proportional to 196,992.40, 295,440.60 and 56,736.40

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Solution

The fourth proportional to 196,992.40, 295,440.60 and 56,736.40 is: 85,090.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,992.40 : 295,440.60 = 56,736.40 : x
  2. Step 2: Convert to fraction form
    196,992.40/295,440.60 = 56,736.40/x
  3. Step 3: Cross multiply
    196,992.40x = 295,440.60 × 56,736.40
  4. Step 4: Simplify right side
    196,992.40x = 16,762,236,057.84
  5. Step 5: Solve for x
    x = 16,762,236,057.84/196,992.40
  6. Step 6: Final answer
    x = 85,090.78

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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.