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Finding the Fourth Proportional to 234,433.90, 351,694.68 and 76,670.92

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Solution

The fourth proportional to 234,433.90, 351,694.68 and 76,670.92 is: 115,020.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,433.90 : 351,694.68 = 76,670.92 : x
  2. Step 2: Convert to fraction form
    234,433.90/351,694.68 = 76,670.92/x
  3. Step 3: Cross multiply
    234,433.90x = 351,694.68 × 76,670.92
  4. Step 4: Simplify right side
    234,433.90x = 26,964,754,674.71
  5. Step 5: Solve for x
    x = 26,964,754,674.71/234,433.90
  6. Step 6: Final answer
    x = 115,020.71

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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.