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Finding the Fourth Proportional to 174,516.98, 261,788.73 and 67,855.11

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Solution

The fourth proportional to 174,516.98, 261,788.73 and 67,855.11 is: 101,787.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,516.98 : 261,788.73 = 67,855.11 : x
  2. Step 2: Convert to fraction form
    174,516.98/261,788.73 = 67,855.11/x
  3. Step 3: Cross multiply
    174,516.98x = 261,788.73 × 67,855.11
  4. Step 4: Simplify right side
    174,516.98x = 17,763,703,070.91
  5. Step 5: Solve for x
    x = 17,763,703,070.91/174,516.98
  6. Step 6: Final answer
    x = 101,787.82

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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.