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Finding the Fourth Proportional to 196,690.60, 295,035.90 and 91,714.60

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Solution

The fourth proportional to 196,690.60, 295,035.90 and 91,714.60 is: 137,571.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,690.60 : 295,035.90 = 91,714.60 : x
  2. Step 2: Convert to fraction form
    196,690.60/295,035.90 = 91,714.60/x
  3. Step 3: Cross multiply
    196,690.60x = 295,035.90 × 91,714.60
  4. Step 4: Simplify right side
    196,690.60x = 27,059,099,554.14
  5. Step 5: Solve for x
    x = 27,059,099,554.14/196,690.60
  6. Step 6: Final answer
    x = 137,571.90

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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.