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Finding the Fourth Proportional to 137,467.60, 206,201.40 and 106,325.20

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Solution

The fourth proportional to 137,467.60, 206,201.40 and 106,325.20 is: 159,487.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,467.60 : 206,201.40 = 106,325.20 : x
  2. Step 2: Convert to fraction form
    137,467.60/206,201.40 = 106,325.20/x
  3. Step 3: Cross multiply
    137,467.60x = 206,201.40 × 106,325.20
  4. Step 4: Simplify right side
    137,467.60x = 21,924,405,095.28
  5. Step 5: Solve for x
    x = 21,924,405,095.28/137,467.60
  6. Step 6: Final answer
    x = 159,487.80

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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.