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Finding the Fourth Proportional to 73,081.60, 109,622.40 and 33,715.60

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Solution

The fourth proportional to 73,081.60, 109,622.40 and 33,715.60 is: 50,573.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,081.60 : 109,622.40 = 33,715.60 : x
  2. Step 2: Convert to fraction form
    73,081.60/109,622.40 = 33,715.60/x
  3. Step 3: Cross multiply
    73,081.60x = 109,622.40 × 33,715.60
  4. Step 4: Simplify right side
    73,081.60x = 3,695,984,989.44
  5. Step 5: Solve for x
    x = 3,695,984,989.44/73,081.60
  6. Step 6: Final answer
    x = 50,573.40

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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.