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Finding the Fourth Proportional to 196,602.60, 295,122.60 and 121,807.20

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Solution

The fourth proportional to 196,602.60, 295,122.60 and 121,807.20 is: 182,846.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,602.60 : 295,122.60 = 121,807.20 : x
  2. Step 2: Convert to fraction form
    196,602.60/295,122.60 = 121,807.20/x
  3. Step 3: Cross multiply
    196,602.60x = 295,122.60 × 121,807.20
  4. Step 4: Simplify right side
    196,602.60x = 35,948,057,562.72
  5. Step 5: Solve for x
    x = 35,948,057,562.72/196,602.60
  6. Step 6: Final answer
    x = 182,846.30

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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.