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Finding the Fourth Proportional to 75,945.08, 104,745.96 and 45,698.87

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Solution

The fourth proportional to 75,945.08, 104,745.96 and 45,698.87 is: 63,029.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,945.08 : 104,745.96 = 45,698.87 : x
  2. Step 2: Convert to fraction form
    75,945.08/104,745.96 = 45,698.87/x
  3. Step 3: Cross multiply
    75,945.08x = 104,745.96 × 45,698.87
  4. Step 4: Simplify right side
    75,945.08x = 4,786,771,485.34
  5. Step 5: Solve for x
    x = 4,786,771,485.34/75,945.08
  6. Step 6: Final answer
    x = 63,029.39

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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.