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Finding the Fourth Proportional to 234,505.64, 351,684.62 and 76,697.26

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Solution

The fourth proportional to 234,505.64, 351,684.62 and 76,697.26 is: 115,021.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,505.64 : 351,684.62 = 76,697.26 : x
  2. Step 2: Convert to fraction form
    234,505.64/351,684.62 = 76,697.26/x
  3. Step 3: Cross multiply
    234,505.64x = 351,684.62 × 76,697.26
  4. Step 4: Simplify right side
    234,505.64x = 26,973,246,738.14
  5. Step 5: Solve for x
    x = 26,973,246,738.14/234,505.64
  6. Step 6: Final answer
    x = 115,021.74

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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.