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Finding the Fourth Proportional to 124,633.83, 171,993.81 and 68,045.19

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Solution

The fourth proportional to 124,633.83, 171,993.81 and 68,045.19 is: 93,901.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,633.83 : 171,993.81 = 68,045.19 : x
  2. Step 2: Convert to fraction form
    124,633.83/171,993.81 = 68,045.19/x
  3. Step 3: Cross multiply
    124,633.83x = 171,993.81 × 68,045.19
  4. Step 4: Simplify right side
    124,633.83x = 11,703,351,480.27
  5. Step 5: Solve for x
    x = 11,703,351,480.27/124,633.83
  6. Step 6: Final answer
    x = 93,901.88

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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.