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Finding the Fourth Proportional to 109,992.75, 151,790.13 and 59,691.75

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Solution

The fourth proportional to 109,992.75, 151,790.13 and 59,691.75 is: 82,374.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,992.75 : 151,790.13 = 59,691.75 : x
  2. Step 2: Convert to fraction form
    109,992.75/151,790.13 = 59,691.75/x
  3. Step 3: Cross multiply
    109,992.75x = 151,790.13 × 59,691.75
  4. Step 4: Simplify right side
    109,992.75x = 9,060,618,492.43
  5. Step 5: Solve for x
    x = 9,060,618,492.43/109,992.75
  6. Step 6: Final answer
    x = 82,374.69

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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.