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Finding the Fourth Proportional to 82,998.68, 114,572.49 and 62,855.60

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Solution

The fourth proportional to 82,998.68, 114,572.49 and 62,855.60 is: 86,766.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,998.68 : 114,572.49 = 62,855.60 : x
  2. Step 2: Convert to fraction form
    82,998.68/114,572.49 = 62,855.60/x
  3. Step 3: Cross multiply
    82,998.68x = 114,572.49 × 62,855.60
  4. Step 4: Simplify right side
    82,998.68x = 7,201,522,602.44
  5. Step 5: Solve for x
    x = 7,201,522,602.44/82,998.68
  6. Step 6: Final answer
    x = 86,766.71

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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.