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Finding the Fourth Proportional to 64,123.75, 96,195.96 and 19,750.48

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Solution

The fourth proportional to 64,123.75, 96,195.96 and 19,750.48 is: 29,628.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,123.75 : 96,195.96 = 19,750.48 : x
  2. Step 2: Convert to fraction form
    64,123.75/96,195.96 = 19,750.48/x
  3. Step 3: Cross multiply
    64,123.75x = 96,195.96 × 19,750.48
  4. Step 4: Simplify right side
    64,123.75x = 1,899,916,334.68
  5. Step 5: Solve for x
    x = 1,899,916,334.68/64,123.75
  6. Step 6: Final answer
    x = 29,628.90

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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.