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Finding the Fourth Proportional to 165,687.94, 228,655.83 and 94,074.64

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Solution

The fourth proportional to 165,687.94, 228,655.83 and 94,074.64 is: 129,826.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,687.94 : 228,655.83 = 94,074.64 : x
  2. Step 2: Convert to fraction form
    165,687.94/228,655.83 = 94,074.64/x
  3. Step 3: Cross multiply
    165,687.94x = 228,655.83 × 94,074.64
  4. Step 4: Simplify right side
    165,687.94x = 21,510,714,891.15
  5. Step 5: Solve for x
    x = 21,510,714,891.15/165,687.94
  6. Step 6: Final answer
    x = 129,826.68

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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.