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Finding the Fourth Proportional to 159,346.01, 219,910.32 and 91,369.28

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Solution

The fourth proportional to 159,346.01, 219,910.32 and 91,369.28 is: 126,096.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,346.01 : 219,910.32 = 91,369.28 : x
  2. Step 2: Convert to fraction form
    159,346.01/219,910.32 = 91,369.28/x
  3. Step 3: Cross multiply
    159,346.01x = 219,910.32 × 91,369.28
  4. Step 4: Simplify right side
    159,346.01x = 20,093,046,503.42
  5. Step 5: Solve for x
    x = 20,093,046,503.42/159,346.01
  6. Step 6: Final answer
    x = 126,096.96

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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.