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Finding the Fourth Proportional to 60,778.20, 91,167.30 and 60,778.20

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Solution

The fourth proportional to 60,778.20, 91,167.30 and 60,778.20 is: 91,167.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,778.20 : 91,167.30 = 60,778.20 : x
  2. Step 2: Convert to fraction form
    60,778.20/91,167.30 = 60,778.20/x
  3. Step 3: Cross multiply
    60,778.20x = 91,167.30 × 60,778.20
  4. Step 4: Simplify right side
    60,778.20x = 5,540,984,392.86
  5. Step 5: Solve for x
    x = 5,540,984,392.86/60,778.20
  6. Step 6: Final answer
    x = 91,167.30

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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.