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Finding the Fourth Proportional to 68,989.37, 103,439.55 and 32,946.32

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Solution

The fourth proportional to 68,989.37, 103,439.55 and 32,946.32 is: 49,398.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,989.37 : 103,439.55 = 32,946.32 : x
  2. Step 2: Convert to fraction form
    68,989.37/103,439.55 = 32,946.32/x
  3. Step 3: Cross multiply
    68,989.37x = 103,439.55 × 32,946.32
  4. Step 4: Simplify right side
    68,989.37x = 3,407,952,514.96
  5. Step 5: Solve for x
    x = 3,407,952,514.96/68,989.37
  6. Step 6: Final answer
    x = 49,398.23

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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.