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Finding the Fourth Proportional to 72,927.82, 100,646.31 and 41,098.87

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Solution

The fourth proportional to 72,927.82, 100,646.31 and 41,098.87 is: 56,719.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,927.82 : 100,646.31 = 41,098.87 : x
  2. Step 2: Convert to fraction form
    72,927.82/100,646.31 = 41,098.87/x
  3. Step 3: Cross multiply
    72,927.82x = 100,646.31 × 41,098.87
  4. Step 4: Simplify right side
    72,927.82x = 4,136,449,610.67
  5. Step 5: Solve for x
    x = 4,136,449,610.67/72,927.82
  6. Step 6: Final answer
    x = 56,719.78

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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.