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Finding the Fourth Proportional to 120,698.88, 166,584.36 and 67,001.08

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Solution

The fourth proportional to 120,698.88, 166,584.36 and 67,001.08 is: 92,472.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,698.88 : 166,584.36 = 67,001.08 : x
  2. Step 2: Convert to fraction form
    120,698.88/166,584.36 = 67,001.08/x
  3. Step 3: Cross multiply
    120,698.88x = 166,584.36 × 67,001.08
  4. Step 4: Simplify right side
    120,698.88x = 11,161,332,031.11
  5. Step 5: Solve for x
    x = 11,161,332,031.11/120,698.88
  6. Step 6: Final answer
    x = 92,472.54

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1.5x scale

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.