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Finding the Fourth Proportional to 71,461.21, 107,181.90 and 50,049.07

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Solution

The fourth proportional to 71,461.21, 107,181.90 and 50,049.07 is: 75,066.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,461.21 : 107,181.90 = 50,049.07 : x
  2. Step 2: Convert to fraction form
    71,461.21/107,181.90 = 50,049.07/x
  3. Step 3: Cross multiply
    71,461.21x = 107,181.90 × 50,049.07
  4. Step 4: Simplify right side
    71,461.21x = 5,364,354,415.83
  5. Step 5: Solve for x
    x = 5,364,354,415.83/71,461.21
  6. Step 6: Final answer
    x = 75,066.66

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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.