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Finding the Fourth Proportional to 67,250.45, 100,742.02 and 61,739.21

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Solution

The fourth proportional to 67,250.45, 100,742.02 and 61,739.21 is: 92,486.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,250.45 : 100,742.02 = 61,739.21 : x
  2. Step 2: Convert to fraction form
    67,250.45/100,742.02 = 61,739.21/x
  3. Step 3: Cross multiply
    67,250.45x = 100,742.02 × 61,739.21
  4. Step 4: Simplify right side
    67,250.45x = 6,219,732,224.89
  5. Step 5: Solve for x
    x = 6,219,732,224.89/67,250.45
  6. Step 6: Final answer
    x = 92,486.11

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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.