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Finding the Fourth Proportional to 68,049.80, 93,882.90 and 50,187.32

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Solution

The fourth proportional to 68,049.80, 93,882.90 and 50,187.32 is: 69,239.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,049.80 : 93,882.90 = 50,187.32 : x
  2. Step 2: Convert to fraction form
    68,049.80/93,882.90 = 50,187.32/x
  3. Step 3: Cross multiply
    68,049.80x = 93,882.90 × 50,187.32
  4. Step 4: Simplify right side
    68,049.80x = 4,711,731,144.83
  5. Step 5: Solve for x
    x = 4,711,731,144.83/68,049.80
  6. Step 6: Final answer
    x = 69,239.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.