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Finding the Fourth Proportional to 126,062.60, 173,964.15 and 68,702.45

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Solution

The fourth proportional to 126,062.60, 173,964.15 and 68,702.45 is: 94,808.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,062.60 : 173,964.15 = 68,702.45 : x
  2. Step 2: Convert to fraction form
    126,062.60/173,964.15 = 68,702.45/x
  3. Step 3: Cross multiply
    126,062.60x = 173,964.15 × 68,702.45
  4. Step 4: Simplify right side
    126,062.60x = 11,951,762,447.35
  5. Step 5: Solve for x
    x = 11,951,762,447.35/126,062.60
  6. Step 6: Final answer
    x = 94,808.16

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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.