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Finding the Fourth Proportional to 234,409.77, 323,487.04 and 126,979.81

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Solution

The fourth proportional to 234,409.77, 323,487.04 and 126,979.81 is: 175,232.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,409.77 : 323,487.04 = 126,979.81 : x
  2. Step 2: Convert to fraction form
    234,409.77/323,487.04 = 126,979.81/x
  3. Step 3: Cross multiply
    234,409.77x = 323,487.04 × 126,979.81
  4. Step 4: Simplify right side
    234,409.77x = 41,076,322,876.66
  5. Step 5: Solve for x
    x = 41,076,322,876.66/234,409.77
  6. Step 6: Final answer
    x = 175,232.98

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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.