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Finding the Fourth Proportional to 61,896.67, 85,487.73 and 41,718.76

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Solution

The fourth proportional to 61,896.67, 85,487.73 and 41,718.76 is: 57,619.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,896.67 : 85,487.73 = 41,718.76 : x
  2. Step 2: Convert to fraction form
    61,896.67/85,487.73 = 41,718.76/x
  3. Step 3: Cross multiply
    61,896.67x = 85,487.73 × 41,718.76
  4. Step 4: Simplify right side
    61,896.67x = 3,566,442,090.81
  5. Step 5: Solve for x
    x = 3,566,442,090.81/61,896.67
  6. Step 6: Final answer
    x = 57,619.29

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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.