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Finding the Fourth Proportional to 121,474.64, 167,633.84 and 67,027.32

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Solution

The fourth proportional to 121,474.64, 167,633.84 and 67,027.32 is: 92,497.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,474.64 : 167,633.84 = 67,027.32 : x
  2. Step 2: Convert to fraction form
    121,474.64/167,633.84 = 67,027.32/x
  3. Step 3: Cross multiply
    121,474.64x = 167,633.84 × 67,027.32
  4. Step 4: Simplify right side
    121,474.64x = 11,236,047,036.51
  5. Step 5: Solve for x
    x = 11,236,047,036.51/121,474.64
  6. Step 6: Final answer
    x = 92,497.06

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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.