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Finding the Fourth Proportional to 196,610.60, 295,134.60 and 121,815.20

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Solution

The fourth proportional to 196,610.60, 295,134.60 and 121,815.20 is: 182,858.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,610.60 : 295,134.60 = 121,815.20 : x
  2. Step 2: Convert to fraction form
    196,610.60/295,134.60 = 121,815.20/x
  3. Step 3: Cross multiply
    196,610.60x = 295,134.60 × 121,815.20
  4. Step 4: Simplify right side
    196,610.60x = 35,951,880,325.92
  5. Step 5: Solve for x
    x = 35,951,880,325.92/196,610.60
  6. Step 6: Final answer
    x = 182,858.30

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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.