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Finding the Fourth Proportional to 160,793.78, 221,880.87 and 89,173.58

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Solution

The fourth proportional to 160,793.78, 221,880.87 and 89,173.58 is: 123,051.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,793.78 : 221,880.87 = 89,173.58 : x
  2. Step 2: Convert to fraction form
    160,793.78/221,880.87 = 89,173.58/x
  3. Step 3: Cross multiply
    160,793.78x = 221,880.87 × 89,173.58
  4. Step 4: Simplify right side
    160,793.78x = 19,785,910,402.01
  5. Step 5: Solve for x
    x = 19,785,910,402.01/160,793.78
  6. Step 6: Final answer
    x = 123,051.47

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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.