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Finding the Fourth Proportional to 110,803.82, 152,921.31 and 68,361.26

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Solution

The fourth proportional to 110,803.82, 152,921.31 and 68,361.26 is: 94,345.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,803.82 : 152,921.31 = 68,361.26 : x
  2. Step 2: Convert to fraction form
    110,803.82/152,921.31 = 68,361.26/x
  3. Step 3: Cross multiply
    110,803.82x = 152,921.31 × 68,361.26
  4. Step 4: Simplify right side
    110,803.82x = 10,453,893,432.45
  5. Step 5: Solve for x
    x = 10,453,893,432.45/110,803.82
  6. Step 6: Final answer
    x = 94,345.97

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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.