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Finding the Fourth Proportional to 66,124.74, 91,251.86 and 35,909.85

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Solution

The fourth proportional to 66,124.74, 91,251.86 and 35,909.85 is: 49,555.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,124.74 : 91,251.86 = 35,909.85 : x
  2. Step 2: Convert to fraction form
    66,124.74/91,251.86 = 35,909.85/x
  3. Step 3: Cross multiply
    66,124.74x = 91,251.86 × 35,909.85
  4. Step 4: Simplify right side
    66,124.74x = 3,276,840,604.82
  5. Step 5: Solve for x
    x = 3,276,840,604.82/66,124.74
  6. Step 6: Final answer
    x = 49,555.44

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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.