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Finding the Fourth Proportional to 71,950.80, 107,926.20 and 67,573.20

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Solution

The fourth proportional to 71,950.80, 107,926.20 and 67,573.20 is: 101,359.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,950.80 : 107,926.20 = 67,573.20 : x
  2. Step 2: Convert to fraction form
    71,950.80/107,926.20 = 67,573.20/x
  3. Step 3: Cross multiply
    71,950.80x = 107,926.20 × 67,573.20
  4. Step 4: Simplify right side
    71,950.80x = 7,292,918,697.84
  5. Step 5: Solve for x
    x = 7,292,918,697.84/71,950.80
  6. Step 6: Final answer
    x = 101,359.80

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1.5x scale

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.