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Finding the Fourth Proportional to 151,168.40, 226,744.20 and 45,979.10

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Solution

The fourth proportional to 151,168.40, 226,744.20 and 45,979.10 is: 68,966.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,168.40 : 226,744.20 = 45,979.10 : x
  2. Step 2: Convert to fraction form
    151,168.40/226,744.20 = 45,979.10/x
  3. Step 3: Cross multiply
    151,168.40x = 226,744.20 × 45,979.10
  4. Step 4: Simplify right side
    151,168.40x = 10,425,494,246.22
  5. Step 5: Solve for x
    x = 10,425,494,246.22/151,168.40
  6. Step 6: Final answer
    x = 68,966.10

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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.