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Finding the Fourth Proportional to 162,604.48, 243,979.44 and 103,424.80

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Solution

The fourth proportional to 162,604.48, 243,979.44 and 103,424.80 is: 155,183.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,604.48 : 243,979.44 = 103,424.80 : x
  2. Step 2: Convert to fraction form
    162,604.48/243,979.44 = 103,424.80/x
  3. Step 3: Cross multiply
    162,604.48x = 243,979.44 × 103,424.80
  4. Step 4: Simplify right side
    162,604.48x = 25,233,524,786.11
  5. Step 5: Solve for x
    x = 25,233,524,786.11/162,604.48
  6. Step 6: Final answer
    x = 155,183.45

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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.