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Finding the Fourth Proportional to 227,166.60, 340,458.30 and 138,325.80

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Solution

The fourth proportional to 227,166.60, 340,458.30 and 138,325.80 is: 207,311.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,166.60 : 340,458.30 = 138,325.80 : x
  2. Step 2: Convert to fraction form
    227,166.60/340,458.30 = 138,325.80/x
  3. Step 3: Cross multiply
    227,166.60x = 340,458.30 × 138,325.80
  4. Step 4: Simplify right side
    227,166.60x = 47,094,166,714.14
  5. Step 5: Solve for x
    x = 47,094,166,714.14/227,166.60
  6. Step 6: Final answer
    x = 207,311.14

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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.