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Finding the Fourth Proportional to 234,111.12, 323,071.04 and 126,678.88

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Solution

The fourth proportional to 234,111.12, 323,071.04 and 126,678.88 is: 174,815.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,111.12 : 323,071.04 = 126,678.88 : x
  2. Step 2: Convert to fraction form
    234,111.12/323,071.04 = 126,678.88/x
  3. Step 3: Cross multiply
    234,111.12x = 323,071.04 × 126,678.88
  4. Step 4: Simplify right side
    234,111.12x = 40,926,277,507.64
  5. Step 5: Solve for x
    x = 40,926,277,507.64/234,111.12
  6. Step 6: Final answer
    x = 174,815.61

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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.