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Finding the Fourth Proportional to 93,571.40, 140,486.70 and 73,872.20

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Solution

The fourth proportional to 93,571.40, 140,486.70 and 73,872.20 is: 110,910.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,571.40 : 140,486.70 = 73,872.20 : x
  2. Step 2: Convert to fraction form
    93,571.40/140,486.70 = 73,872.20/x
  3. Step 3: Cross multiply
    93,571.40x = 140,486.70 × 73,872.20
  4. Step 4: Simplify right side
    93,571.40x = 10,378,061,599.74
  5. Step 5: Solve for x
    x = 10,378,061,599.74/93,571.40
  6. Step 6: Final answer
    x = 110,910.62

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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.