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Finding the Fourth Proportional to 70,766.52, 106,139.88 and 26,387.52

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Solution

The fourth proportional to 70,766.52, 106,139.88 and 26,387.52 is: 39,577.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,766.52 : 106,139.88 = 26,387.52 : x
  2. Step 2: Convert to fraction form
    70,766.52/106,139.88 = 26,387.52/x
  3. Step 3: Cross multiply
    70,766.52x = 106,139.88 × 26,387.52
  4. Step 4: Simplify right side
    70,766.52x = 2,800,768,206.30
  5. Step 5: Solve for x
    x = 2,800,768,206.30/70,766.52
  6. Step 6: Final answer
    x = 39,577.59

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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.