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Finding the Fourth Proportional to 122,349.33, 168,849.83 and 68,637.83

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Solution

The fourth proportional to 122,349.33, 168,849.83 and 68,637.83 is: 94,724.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,349.33 : 168,849.83 = 68,637.83 : x
  2. Step 2: Convert to fraction form
    122,349.33/168,849.83 = 68,637.83/x
  3. Step 3: Cross multiply
    122,349.33x = 168,849.83 × 68,637.83
  4. Step 4: Simplify right side
    122,349.33x = 11,589,485,254.41
  5. Step 5: Solve for x
    x = 11,589,485,254.41/122,349.33
  6. Step 6: Final answer
    x = 94,724.55

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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.