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Finding the Fourth Proportional to 109,897.56, 151,625.15 and 61,494.47

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Solution

The fourth proportional to 109,897.56, 151,625.15 and 61,494.47 is: 84,843.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,897.56 : 151,625.15 = 61,494.47 : x
  2. Step 2: Convert to fraction form
    109,897.56/151,625.15 = 61,494.47/x
  3. Step 3: Cross multiply
    109,897.56x = 151,625.15 × 61,494.47
  4. Step 4: Simplify right side
    109,897.56x = 9,324,108,237.92
  5. Step 5: Solve for x
    x = 9,324,108,237.92/109,897.56
  6. Step 6: Final answer
    x = 84,843.63

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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.