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Finding the Fourth Proportional to 89,803.79, 134,666.64 and 25,747.82

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Solution

The fourth proportional to 89,803.79, 134,666.64 and 25,747.82 is: 38,610.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,803.79 : 134,666.64 = 25,747.82 : x
  2. Step 2: Convert to fraction form
    89,803.79/134,666.64 = 25,747.82/x
  3. Step 3: Cross multiply
    89,803.79x = 134,666.64 × 25,747.82
  4. Step 4: Simplify right side
    89,803.79x = 3,467,372,689.56
  5. Step 5: Solve for x
    x = 3,467,372,689.56/89,803.79
  6. Step 6: Final answer
    x = 38,610.54

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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.