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Finding the Fourth Proportional to 203,254.91, 304,759.24 and 90,914.19

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Solution

The fourth proportional to 203,254.91, 304,759.24 and 90,914.19 is: 136,316.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,254.91 : 304,759.24 = 90,914.19 : x
  2. Step 2: Convert to fraction form
    203,254.91/304,759.24 = 90,914.19/x
  3. Step 3: Cross multiply
    203,254.91x = 304,759.24 × 90,914.19
  4. Step 4: Simplify right side
    203,254.91x = 27,706,939,449.62
  5. Step 5: Solve for x
    x = 27,706,939,449.62/203,254.91
  6. Step 6: Final answer
    x = 136,316.21

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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.