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Finding the Fourth Proportional to 126,062.79, 173,964.30 and 68,702.58

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Solution

The fourth proportional to 126,062.79, 173,964.30 and 68,702.58 is: 94,808.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,062.79 : 173,964.30 = 68,702.58 : x
  2. Step 2: Convert to fraction form
    126,062.79/173,964.30 = 68,702.58/x
  3. Step 3: Cross multiply
    126,062.79x = 173,964.30 × 68,702.58
  4. Step 4: Simplify right side
    126,062.79x = 11,951,796,237.89
  5. Step 5: Solve for x
    x = 11,951,796,237.89/126,062.79
  6. Step 6: Final answer
    x = 94,808.28

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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.