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Finding the Fourth Proportional to 196,991.40, 295,439.10 and 56,735.40

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Solution

The fourth proportional to 196,991.40, 295,439.10 and 56,735.40 is: 85,089.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,991.40 : 295,439.10 = 56,735.40 : x
  2. Step 2: Convert to fraction form
    196,991.40/295,439.10 = 56,735.40/x
  3. Step 3: Cross multiply
    196,991.40x = 295,439.10 × 56,735.40
  4. Step 4: Simplify right side
    196,991.40x = 16,761,855,514.14
  5. Step 5: Solve for x
    x = 16,761,855,514.14/196,991.40
  6. Step 6: Final answer
    x = 85,089.28

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1.5x scale

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.