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Finding the Fourth Proportional to 124,194, 171,387.74 and 67,605.80

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Solution

The fourth proportional to 124,194, 171,387.74 and 67,605.80 is: 93,296.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,194 : 171,387.74 = 67,605.80 : x
  2. Step 2: Convert to fraction form
    124,194/171,387.74 = 67,605.80/x
  3. Step 3: Cross multiply
    124,194x = 171,387.74 × 67,605.80
  4. Step 4: Simplify right side
    124,194x = 11,586,805,272.89
  5. Step 5: Solve for x
    x = 11,586,805,272.89/124,194
  6. Step 6: Final answer
    x = 93,296.01

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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.