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Finding the Fourth Proportional to 110,601.79, 165,521.49 and 67,878.87

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Solution

The fourth proportional to 110,601.79, 165,521.49 and 67,878.87 is: 101,584.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,601.79 : 165,521.49 = 67,878.87 : x
  2. Step 2: Convert to fraction form
    110,601.79/165,521.49 = 67,878.87/x
  3. Step 3: Cross multiply
    110,601.79x = 165,521.49 × 67,878.87
  4. Step 4: Simplify right side
    110,601.79x = 11,235,411,701.92
  5. Step 5: Solve for x
    x = 11,235,411,701.92/110,601.79
  6. Step 6: Final answer
    x = 101,584.36

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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.