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Finding the Fourth Proportional to 120,759.36, 166,649.88 and 67,047.84

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Solution

The fourth proportional to 120,759.36, 166,649.88 and 67,047.84 is: 92,527.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,759.36 : 166,649.88 = 67,047.84 : x
  2. Step 2: Convert to fraction form
    120,759.36/166,649.88 = 67,047.84/x
  3. Step 3: Cross multiply
    120,759.36x = 166,649.88 × 67,047.84
  4. Step 4: Simplify right side
    120,759.36x = 11,173,514,490.26
  5. Step 5: Solve for x
    x = 11,173,514,490.26/120,759.36
  6. Step 6: Final answer
    x = 92,527.11

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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.