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Finding the Fourth Proportional to 234,290.40, 351,435.60 and 107,930.40

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Solution

The fourth proportional to 234,290.40, 351,435.60 and 107,930.40 is: 161,895.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,290.40 : 351,435.60 = 107,930.40 : x
  2. Step 2: Convert to fraction form
    234,290.40/351,435.60 = 107,930.40/x
  3. Step 3: Cross multiply
    234,290.40x = 351,435.60 × 107,930.40
  4. Step 4: Simplify right side
    234,290.40x = 37,930,584,882.24
  5. Step 5: Solve for x
    x = 37,930,584,882.24/234,290.40
  6. Step 6: Final answer
    x = 161,895.60

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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.