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Finding the Fourth Proportional to 89,659.78, 134,499.40 and 33,526.78

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Solution

The fourth proportional to 89,659.78, 134,499.40 and 33,526.78 is: 50,293.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,659.78 : 134,499.40 = 33,526.78 : x
  2. Step 2: Convert to fraction form
    89,659.78/134,499.40 = 33,526.78/x
  3. Step 3: Cross multiply
    89,659.78x = 134,499.40 × 33,526.78
  4. Step 4: Simplify right side
    89,659.78x = 4,509,331,793.93
  5. Step 5: Solve for x
    x = 4,509,331,793.93/89,659.78
  6. Step 6: Final answer
    x = 50,293.81

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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.