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Finding the Fourth Proportional to 121,247.86, 181,759.69 and 61,952.82

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Solution

The fourth proportional to 121,247.86, 181,759.69 and 61,952.82 is: 92,871.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,247.86 : 181,759.69 = 61,952.82 : x
  2. Step 2: Convert to fraction form
    121,247.86/181,759.69 = 61,952.82/x
  3. Step 3: Cross multiply
    121,247.86x = 181,759.69 × 61,952.82
  4. Step 4: Simplify right side
    121,247.86x = 11,260,525,357.83
  5. Step 5: Solve for x
    x = 11,260,525,357.83/121,247.86
  6. Step 6: Final answer
    x = 92,871.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.