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Finding the Fourth Proportional to 71,340.80, 106,934.40 and 26,950.40

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Solution

The fourth proportional to 71,340.80, 106,934.40 and 26,950.40 is: 40,396.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,340.80 : 106,934.40 = 26,950.40 : x
  2. Step 2: Convert to fraction form
    71,340.80/106,934.40 = 26,950.40/x
  3. Step 3: Cross multiply
    71,340.80x = 106,934.40 × 26,950.40
  4. Step 4: Simplify right side
    71,340.80x = 2,881,924,853.76
  5. Step 5: Solve for x
    x = 2,881,924,853.76/71,340.80
  6. Step 6: Final answer
    x = 40,396.59

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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.