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Finding the Fourth Proportional to 71,167.99, 106,669.80 and 26,766.40

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Solution

The fourth proportional to 71,167.99, 106,669.80 and 26,766.40 is: 40,118.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,167.99 : 106,669.80 = 26,766.40 : x
  2. Step 2: Convert to fraction form
    71,167.99/106,669.80 = 26,766.40/x
  3. Step 3: Cross multiply
    71,167.99x = 106,669.80 × 26,766.40
  4. Step 4: Simplify right side
    71,167.99x = 2,855,166,534.72
  5. Step 5: Solve for x
    x = 2,855,166,534.72/71,167.99
  6. Step 6: Final answer
    x = 40,118.69

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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.