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Finding the Fourth Proportional to 120,813.58, 166,723.13 and 67,098.59

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Solution

The fourth proportional to 120,813.58, 166,723.13 and 67,098.59 is: 92,596.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,813.58 : 166,723.13 = 67,098.59 : x
  2. Step 2: Convert to fraction form
    120,813.58/166,723.13 = 67,098.59/x
  3. Step 3: Cross multiply
    120,813.58x = 166,723.13 × 67,098.59
  4. Step 4: Simplify right side
    120,813.58x = 11,186,885,774.28
  5. Step 5: Solve for x
    x = 11,186,885,774.28/120,813.58
  6. Step 6: Final answer
    x = 92,596.26

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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.