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Finding the Fourth Proportional to 108,485.88, 162,603.90 and 41,896.68

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Solution

The fourth proportional to 108,485.88, 162,603.90 and 41,896.68 is: 62,796.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,485.88 : 162,603.90 = 41,896.68 : x
  2. Step 2: Convert to fraction form
    108,485.88/162,603.90 = 41,896.68/x
  3. Step 3: Cross multiply
    108,485.88x = 162,603.90 × 41,896.68
  4. Step 4: Simplify right side
    108,485.88x = 6,812,563,565.05
  5. Step 5: Solve for x
    x = 6,812,563,565.05/108,485.88
  6. Step 6: Final answer
    x = 62,796.78

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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.