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Finding the Fourth Proportional to 160,803.92, 221,905.48 and 89,183.44

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Solution

The fourth proportional to 160,803.92, 221,905.48 and 89,183.44 is: 123,070.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,803.92 : 221,905.48 = 89,183.44 : x
  2. Step 2: Convert to fraction form
    160,803.92/221,905.48 = 89,183.44/x
  3. Step 3: Cross multiply
    160,803.92x = 221,905.48 × 89,183.44
  4. Step 4: Simplify right side
    160,803.92x = 19,790,294,061.25
  5. Step 5: Solve for x
    x = 19,790,294,061.25/160,803.92
  6. Step 6: Final answer
    x = 123,070.97

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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.