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Finding the Fourth Proportional to 110,351.25, 152,274.21 and 61,942.09

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Solution

The fourth proportional to 110,351.25, 152,274.21 and 61,942.09 is: 85,474.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,351.25 : 152,274.21 = 61,942.09 : x
  2. Step 2: Convert to fraction form
    110,351.25/152,274.21 = 61,942.09/x
  3. Step 3: Cross multiply
    110,351.25x = 152,274.21 × 61,942.09
  4. Step 4: Simplify right side
    110,351.25x = 9,432,182,877.76
  5. Step 5: Solve for x
    x = 9,432,182,877.76/110,351.25
  6. Step 6: Final answer
    x = 85,474.18

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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.