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Finding the Fourth Proportional to 234,614.76, 351,886.50 and 76,839.72

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Solution

The fourth proportional to 234,614.76, 351,886.50 and 76,839.72 is: 115,247.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,614.76 : 351,886.50 = 76,839.72 : x
  2. Step 2: Convert to fraction form
    234,614.76/351,886.50 = 76,839.72/x
  3. Step 3: Cross multiply
    234,614.76x = 351,886.50 × 76,839.72
  4. Step 4: Simplify right side
    234,614.76x = 27,038,860,131.78
  5. Step 5: Solve for x
    x = 27,038,860,131.78/234,614.76
  6. Step 6: Final answer
    x = 115,247.91

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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.