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Finding the Fourth Proportional to 234,086.21, 323,036.67 and 126,653.89

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Solution

The fourth proportional to 234,086.21, 323,036.67 and 126,653.89 is: 174,781.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,086.21 : 323,036.67 = 126,653.89 : x
  2. Step 2: Convert to fraction form
    234,086.21/323,036.67 = 126,653.89/x
  3. Step 3: Cross multiply
    234,086.21x = 323,036.67 × 126,653.89
  4. Step 4: Simplify right side
    234,086.21x = 40,913,849,252.96
  5. Step 5: Solve for x
    x = 40,913,849,252.96/234,086.21
  6. Step 6: Final answer
    x = 174,781.12

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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.