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Finding the Fourth Proportional to 196,656.60, 295,203.60 and 121,861.20

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Solution

The fourth proportional to 196,656.60, 295,203.60 and 121,861.20 is: 182,927.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,656.60 : 295,203.60 = 121,861.20 : x
  2. Step 2: Convert to fraction form
    196,656.60/295,203.60 = 121,861.20/x
  3. Step 3: Cross multiply
    196,656.60x = 295,203.60 × 121,861.20
  4. Step 4: Simplify right side
    196,656.60x = 35,973,864,940.32
  5. Step 5: Solve for x
    x = 35,973,864,940.32/196,656.60
  6. Step 6: Final answer
    x = 182,927.32

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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.