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Finding the Fourth Proportional to 124,190, 171,382.22 and 67,601.80

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Solution

The fourth proportional to 124,190, 171,382.22 and 67,601.80 is: 93,290.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,190 : 171,382.22 = 67,601.80 : x
  2. Step 2: Convert to fraction form
    124,190/171,382.22 = 67,601.80/x
  3. Step 3: Cross multiply
    124,190x = 171,382.22 × 67,601.80
  4. Step 4: Simplify right side
    124,190x = 11,585,746,560.00
  5. Step 5: Solve for x
    x = 11,585,746,560.00/124,190
  6. Step 6: Final answer
    x = 93,290.49

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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.