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Finding the Fourth Proportional to 80,071.86, 110,499.12 and 48,246.90

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Solution

The fourth proportional to 80,071.86, 110,499.12 and 48,246.90 is: 66,580.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,071.86 : 110,499.12 = 48,246.90 : x
  2. Step 2: Convert to fraction form
    80,071.86/110,499.12 = 48,246.90/x
  3. Step 3: Cross multiply
    80,071.86x = 110,499.12 × 48,246.90
  4. Step 4: Simplify right side
    80,071.86x = 5,331,239,992.73
  5. Step 5: Solve for x
    x = 5,331,239,992.73/80,071.86
  6. Step 6: Final answer
    x = 66,580.69

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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.