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Finding the Fourth Proportional to 147,212.44, 203,153.16 and 80,144.44

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Solution

The fourth proportional to 147,212.44, 203,153.16 and 80,144.44 is: 110,599.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,212.44 : 203,153.16 = 80,144.44 : x
  2. Step 2: Convert to fraction form
    147,212.44/203,153.16 = 80,144.44/x
  3. Step 3: Cross multiply
    147,212.44x = 203,153.16 × 80,144.44
  4. Step 4: Simplify right side
    147,212.44x = 16,281,596,035.09
  5. Step 5: Solve for x
    x = 16,281,596,035.09/147,212.44
  6. Step 6: Final answer
    x = 110,599.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.