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Finding the Fourth Proportional to 92,486.91, 127,632.54 and 54,238.68

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Solution

The fourth proportional to 92,486.91, 127,632.54 and 54,238.68 is: 74,849.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,486.91 : 127,632.54 = 54,238.68 : x
  2. Step 2: Convert to fraction form
    92,486.91/127,632.54 = 54,238.68/x
  3. Step 3: Cross multiply
    92,486.91x = 127,632.54 × 54,238.68
  4. Step 4: Simplify right side
    92,486.91x = 6,922,620,494.65
  5. Step 5: Solve for x
    x = 6,922,620,494.65/92,486.91
  6. Step 6: Final answer
    x = 74,849.73

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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.