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Finding the Fourth Proportional to 167,280.92, 250,773.48 and 128,013.32

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Solution

The fourth proportional to 167,280.92, 250,773.48 and 128,013.32 is: 191,906.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,280.92 : 250,773.48 = 128,013.32 : x
  2. Step 2: Convert to fraction form
    167,280.92/250,773.48 = 128,013.32/x
  3. Step 3: Cross multiply
    167,280.92x = 250,773.48 × 128,013.32
  4. Step 4: Simplify right side
    167,280.92x = 32,102,345,742.75
  5. Step 5: Solve for x
    x = 32,102,345,742.75/167,280.92
  6. Step 6: Final answer
    x = 191,906.80

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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.