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Finding the Fourth Proportional to 120,795.48, 166,702.04 and 67,081.40

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Solution

The fourth proportional to 120,795.48, 166,702.04 and 67,081.40 is: 92,574.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,795.48 : 166,702.04 = 67,081.40 : x
  2. Step 2: Convert to fraction form
    120,795.48/166,702.04 = 67,081.40/x
  3. Step 3: Cross multiply
    120,795.48x = 166,702.04 × 67,081.40
  4. Step 4: Simplify right side
    120,795.48x = 11,182,606,226.06
  5. Step 5: Solve for x
    x = 11,182,606,226.06/120,795.48
  6. Step 6: Final answer
    x = 92,574.71

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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.