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Finding the Fourth Proportional to 64,921.96, 97,614.78 and 59,789.80

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Solution

The fourth proportional to 64,921.96, 97,614.78 and 59,789.80 is: 89,898.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,921.96 : 97,614.78 = 59,789.80 : x
  2. Step 2: Convert to fraction form
    64,921.96/97,614.78 = 59,789.80/x
  3. Step 3: Cross multiply
    64,921.96x = 97,614.78 × 59,789.80
  4. Step 4: Simplify right side
    64,921.96x = 5,836,368,173.24
  5. Step 5: Solve for x
    x = 5,836,368,173.24/64,921.96
  6. Step 6: Final answer
    x = 89,898.21

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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.