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Finding the Fourth Proportional to 71,777.80, 107,623.23 and 29,685.52

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Solution

The fourth proportional to 71,777.80, 107,623.23 and 29,685.52 is: 44,510.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,777.80 : 107,623.23 = 29,685.52 : x
  2. Step 2: Convert to fraction form
    71,777.80/107,623.23 = 29,685.52/x
  3. Step 3: Cross multiply
    71,777.80x = 107,623.23 × 29,685.52
  4. Step 4: Simplify right side
    71,777.80x = 3,194,851,546.63
  5. Step 5: Solve for x
    x = 3,194,851,546.63/71,777.80
  6. Step 6: Final answer
    x = 44,510.30

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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.