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Finding the Fourth Proportional to 77,092.40, 115,622.40 and 32,720.60

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Solution

The fourth proportional to 77,092.40, 115,622.40 and 32,720.60 is: 49,074.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,092.40 : 115,622.40 = 32,720.60 : x
  2. Step 2: Convert to fraction form
    77,092.40/115,622.40 = 32,720.60/x
  3. Step 3: Cross multiply
    77,092.40x = 115,622.40 × 32,720.60
  4. Step 4: Simplify right side
    77,092.40x = 3,783,234,301.44
  5. Step 5: Solve for x
    x = 3,783,234,301.44/77,092.40
  6. Step 6: Final answer
    x = 49,074.02

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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.