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Finding the Fourth Proportional to 196,608.60, 295,131.60 and 121,813.20

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Solution

The fourth proportional to 196,608.60, 295,131.60 and 121,813.20 is: 182,855.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,608.60 : 295,131.60 = 121,813.20 : x
  2. Step 2: Convert to fraction form
    196,608.60/295,131.60 = 121,813.20/x
  3. Step 3: Cross multiply
    196,608.60x = 295,131.60 × 121,813.20
  4. Step 4: Simplify right side
    196,608.60x = 35,950,924,617.12
  5. Step 5: Solve for x
    x = 35,950,924,617.12/196,608.60
  6. Step 6: Final answer
    x = 182,855.30

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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.