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Finding the Fourth Proportional to 66,826.62, 100,239.88 and 62,397.94

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Solution

The fourth proportional to 66,826.62, 100,239.88 and 62,397.94 is: 93,596.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,826.62 : 100,239.88 = 62,397.94 : x
  2. Step 2: Convert to fraction form
    66,826.62/100,239.88 = 62,397.94/x
  3. Step 3: Cross multiply
    66,826.62x = 100,239.88 × 62,397.94
  4. Step 4: Simplify right side
    66,826.62x = 6,254,762,017.85
  5. Step 5: Solve for x
    x = 6,254,762,017.85/66,826.62
  6. Step 6: Final answer
    x = 93,596.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.