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Finding the Fourth Proportional to 120,833.58, 166,747.77 and 67,117.62

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Solution

The fourth proportional to 120,833.58, 166,747.77 and 67,117.62 is: 92,620.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,833.58 : 166,747.77 = 67,117.62 : x
  2. Step 2: Convert to fraction form
    120,833.58/166,747.77 = 67,117.62/x
  3. Step 3: Cross multiply
    120,833.58x = 166,747.77 × 67,117.62
  4. Step 4: Simplify right side
    120,833.58x = 11,191,713,462.71
  5. Step 5: Solve for x
    x = 11,191,713,462.71/120,833.58
  6. Step 6: Final answer
    x = 92,620.89

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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.