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Finding the Fourth Proportional to 82,777.80, 124,168.98 and 30,226.44

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Solution

The fourth proportional to 82,777.80, 124,168.98 and 30,226.44 is: 45,340.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,777.80 : 124,168.98 = 30,226.44 : x
  2. Step 2: Convert to fraction form
    82,777.80/124,168.98 = 30,226.44/x
  3. Step 3: Cross multiply
    82,777.80x = 124,168.98 × 30,226.44
  4. Step 4: Simplify right side
    82,777.80x = 3,753,186,223.83
  5. Step 5: Solve for x
    x = 3,753,186,223.83/82,777.80
  6. Step 6: Final answer
    x = 45,340.49

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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.