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Finding the Fourth Proportional to 100,388.58, 150,566.72 and 29,294.53

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Solution

The fourth proportional to 100,388.58, 150,566.72 and 29,294.53 is: 43,937.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,388.58 : 150,566.72 = 29,294.53 : x
  2. Step 2: Convert to fraction form
    100,388.58/150,566.72 = 29,294.53/x
  3. Step 3: Cross multiply
    100,388.58x = 150,566.72 × 29,294.53
  4. Step 4: Simplify right side
    100,388.58x = 4,410,780,773.15
  5. Step 5: Solve for x
    x = 4,410,780,773.15/100,388.58
  6. Step 6: Final answer
    x = 43,937.08

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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.