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Finding the Fourth Proportional to 168,002.73, 251,916.60 and 79,232.40

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Solution

The fourth proportional to 168,002.73, 251,916.60 and 79,232.40 is: 118,807.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,002.73 : 251,916.60 = 79,232.40 : x
  2. Step 2: Convert to fraction form
    168,002.73/251,916.60 = 79,232.40/x
  3. Step 3: Cross multiply
    168,002.73x = 251,916.60 × 79,232.40
  4. Step 4: Simplify right side
    168,002.73x = 19,959,956,421.68
  5. Step 5: Solve for x
    x = 19,959,956,421.68/168,002.73
  6. Step 6: Final answer
    x = 118,807.33

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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.