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Finding the Fourth Proportional to 151,279.40, 226,919.10 and 40,471.40

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Solution

The fourth proportional to 151,279.40, 226,919.10 and 40,471.40 is: 60,707.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,279.40 : 226,919.10 = 40,471.40 : x
  2. Step 2: Convert to fraction form
    151,279.40/226,919.10 = 40,471.40/x
  3. Step 3: Cross multiply
    151,279.40x = 226,919.10 × 40,471.40
  4. Step 4: Simplify right side
    151,279.40x = 9,183,733,663.74
  5. Step 5: Solve for x
    x = 9,183,733,663.74/151,279.40
  6. Step 6: Final answer
    x = 60,707.10

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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.