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Finding the Fourth Proportional to 120,474.63, 166,253.04 and 66,759.48

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Solution

The fourth proportional to 120,474.63, 166,253.04 and 66,759.48 is: 92,127.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,474.63 : 166,253.04 = 66,759.48 : x
  2. Step 2: Convert to fraction form
    120,474.63/166,253.04 = 66,759.48/x
  3. Step 3: Cross multiply
    120,474.63x = 166,253.04 × 66,759.48
  4. Step 4: Simplify right side
    120,474.63x = 11,098,966,498.82
  5. Step 5: Solve for x
    x = 11,098,966,498.82/120,474.63
  6. Step 6: Final answer
    x = 92,127.00

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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.