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Finding the Fourth Proportional to 69,311.76, 95,651.22 and 42,444.46

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Solution

The fourth proportional to 69,311.76, 95,651.22 and 42,444.46 is: 58,573.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,311.76 : 95,651.22 = 42,444.46 : x
  2. Step 2: Convert to fraction form
    69,311.76/95,651.22 = 42,444.46/x
  3. Step 3: Cross multiply
    69,311.76x = 95,651.22 × 42,444.46
  4. Step 4: Simplify right side
    69,311.76x = 4,059,864,381.24
  5. Step 5: Solve for x
    x = 4,059,864,381.24/69,311.76
  6. Step 6: Final answer
    x = 58,573.96

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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.