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Finding the Fourth Proportional to 67,770.45, 101,655.68 and 32,778.45

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Solution

The fourth proportional to 67,770.45, 101,655.68 and 32,778.45 is: 49,167.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,770.45 : 101,655.68 = 32,778.45 : x
  2. Step 2: Convert to fraction form
    67,770.45/101,655.68 = 32,778.45/x
  3. Step 3: Cross multiply
    67,770.45x = 101,655.68 × 32,778.45
  4. Step 4: Simplify right side
    67,770.45x = 3,332,115,460.20
  5. Step 5: Solve for x
    x = 3,332,115,460.20/67,770.45
  6. Step 6: Final answer
    x = 49,167.68

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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.