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Finding the Fourth Proportional to 109,361.45, 150,918.78 and 59,060.45

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Solution

The fourth proportional to 109,361.45, 150,918.78 and 59,060.45 is: 81,503.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,361.45 : 150,918.78 = 59,060.45 : x
  2. Step 2: Convert to fraction form
    109,361.45/150,918.78 = 59,060.45/x
  3. Step 3: Cross multiply
    109,361.45x = 150,918.78 × 59,060.45
  4. Step 4: Simplify right side
    109,361.45x = 8,913,330,305.66
  5. Step 5: Solve for x
    x = 8,913,330,305.66/109,361.45
  6. Step 6: Final answer
    x = 81,503.41

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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.