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Finding the Fourth Proportional to 100,725.78, 151,063.53 and 29,634.27

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Solution

The fourth proportional to 100,725.78, 151,063.53 and 29,634.27 is: 44,444.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,725.78 : 151,063.53 = 29,634.27 : x
  2. Step 2: Convert to fraction form
    100,725.78/151,063.53 = 29,634.27/x
  3. Step 3: Cross multiply
    100,725.78x = 151,063.53 × 29,634.27
  4. Step 4: Simplify right side
    100,725.78x = 4,476,657,435.17
  5. Step 5: Solve for x
    x = 4,476,657,435.17/100,725.78
  6. Step 6: Final answer
    x = 44,444.01

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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.