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Finding the Fourth Proportional to 86,843.60, 119,844.16 and 47,099.60

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Solution

The fourth proportional to 86,843.60, 119,844.16 and 47,099.60 is: 64,997.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,843.60 : 119,844.16 = 47,099.60 : x
  2. Step 2: Convert to fraction form
    86,843.60/119,844.16 = 47,099.60/x
  3. Step 3: Cross multiply
    86,843.60x = 119,844.16 × 47,099.60
  4. Step 4: Simplify right side
    86,843.60x = 5,644,611,516.86
  5. Step 5: Solve for x
    x = 5,644,611,516.86/86,843.60
  6. Step 6: Final answer
    x = 64,997.44

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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.