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Finding the Fourth Proportional to 92,727.52, 127,942.56 and 62,568.80

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Solution

The fourth proportional to 92,727.52, 127,942.56 and 62,568.80 is: 86,330.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,727.52 : 127,942.56 = 62,568.80 : x
  2. Step 2: Convert to fraction form
    92,727.52/127,942.56 = 62,568.80/x
  3. Step 3: Cross multiply
    92,727.52x = 127,942.56 × 62,568.80
  4. Step 4: Simplify right side
    92,727.52x = 8,005,212,448.13
  5. Step 5: Solve for x
    x = 8,005,212,448.13/92,727.52
  6. Step 6: Final answer
    x = 86,330.49

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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.