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Finding the Fourth Proportional to 196,991.13, 295,535.30 and 56,748.54

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Solution

The fourth proportional to 196,991.13, 295,535.30 and 56,748.54 is: 85,136.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,991.13 : 295,535.30 = 56,748.54 : x
  2. Step 2: Convert to fraction form
    196,991.13/295,535.30 = 56,748.54/x
  3. Step 3: Cross multiply
    196,991.13x = 295,535.30 × 56,748.54
  4. Step 4: Simplify right side
    196,991.13x = 16,771,196,509.72
  5. Step 5: Solve for x
    x = 16,771,196,509.72/196,991.13
  6. Step 6: Final answer
    x = 85,136.81

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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.