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Finding the Fourth Proportional to 67,250.95, 100,742.77 and 61,739.71

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Solution

The fourth proportional to 67,250.95, 100,742.77 and 61,739.71 is: 92,486.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,250.95 : 100,742.77 = 61,739.71 : x
  2. Step 2: Convert to fraction form
    67,250.95/100,742.77 = 61,739.71/x
  3. Step 3: Cross multiply
    67,250.95x = 100,742.77 × 61,739.71
  4. Step 4: Simplify right side
    67,250.95x = 6,219,829,404.40
  5. Step 5: Solve for x
    x = 6,219,829,404.40/67,250.95
  6. Step 6: Final answer
    x = 92,486.86

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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.