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Finding the Fourth Proportional to 124,606.44, 171,959.24 and 68,019.84

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Solution

The fourth proportional to 124,606.44, 171,959.24 and 68,019.84 is: 93,868.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,606.44 : 171,959.24 = 68,019.84 : x
  2. Step 2: Convert to fraction form
    124,606.44/171,959.24 = 68,019.84/x
  3. Step 3: Cross multiply
    124,606.44x = 171,959.24 × 68,019.84
  4. Step 4: Simplify right side
    124,606.44x = 11,696,639,991.32
  5. Step 5: Solve for x
    x = 11,696,639,991.32/124,606.44
  6. Step 6: Final answer
    x = 93,868.66

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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.