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Finding the Fourth Proportional to 73,998.30, 110,997.45 and 73,479.90

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Solution

The fourth proportional to 73,998.30, 110,997.45 and 73,479.90 is: 110,219.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,998.30 : 110,997.45 = 73,479.90 : x
  2. Step 2: Convert to fraction form
    73,998.30/110,997.45 = 73,479.90/x
  3. Step 3: Cross multiply
    73,998.30x = 110,997.45 × 73,479.90
  4. Step 4: Simplify right side
    73,998.30x = 8,156,081,526.26
  5. Step 5: Solve for x
    x = 8,156,081,526.26/73,998.30
  6. Step 6: Final answer
    x = 110,219.85

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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.