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Finding the Fourth Proportional to 80,417.91, 110,981.43 and 44,611.86

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Solution

The fourth proportional to 80,417.91, 110,981.43 and 44,611.86 is: 61,566.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,417.91 : 110,981.43 = 44,611.86 : x
  2. Step 2: Convert to fraction form
    80,417.91/110,981.43 = 44,611.86/x
  3. Step 3: Cross multiply
    80,417.91x = 110,981.43 × 44,611.86
  4. Step 4: Simplify right side
    80,417.91x = 4,951,088,017.76
  5. Step 5: Solve for x
    x = 4,951,088,017.76/80,417.91
  6. Step 6: Final answer
    x = 61,566.98

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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.