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Finding the Fourth Proportional to 234,361.02, 323,417.43 and 126,930.78

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Solution

The fourth proportional to 234,361.02, 323,417.43 and 126,930.78 is: 175,164.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,361.02 : 323,417.43 = 126,930.78 : x
  2. Step 2: Convert to fraction form
    234,361.02/323,417.43 = 126,930.78/x
  3. Step 3: Cross multiply
    234,361.02x = 323,417.43 × 126,930.78
  4. Step 4: Simplify right side
    234,361.02x = 41,051,626,655.50
  5. Step 5: Solve for x
    x = 41,051,626,655.50/234,361.02
  6. Step 6: Final answer
    x = 175,164.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.