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Finding the Fourth Proportional to 126,062.77, 173,966.65 and 68,702.11

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Solution

The fourth proportional to 126,062.77, 173,966.65 and 68,702.11 is: 94,808.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,062.77 : 173,966.65 = 68,702.11 : x
  2. Step 2: Convert to fraction form
    126,062.77/173,966.65 = 68,702.11/x
  3. Step 3: Cross multiply
    126,062.77x = 173,966.65 × 68,702.11
  4. Step 4: Simplify right side
    126,062.77x = 11,951,875,054.80
  5. Step 5: Solve for x
    x = 11,951,875,054.80/126,062.77
  6. Step 6: Final answer
    x = 94,808.92

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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.