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Finding the Fourth Proportional to 101,396.64, 152,012.94 and 61,940.43

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Solution

The fourth proportional to 101,396.64, 152,012.94 and 61,940.43 is: 92,860.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,396.64 : 152,012.94 = 61,940.43 : x
  2. Step 2: Convert to fraction form
    101,396.64/152,012.94 = 61,940.43/x
  3. Step 3: Cross multiply
    101,396.64x = 152,012.94 × 61,940.43
  4. Step 4: Simplify right side
    101,396.64x = 9,415,746,636.89
  5. Step 5: Solve for x
    x = 9,415,746,636.89/101,396.64
  6. Step 6: Final answer
    x = 92,860.54

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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.