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Finding the Fourth Proportional to 329,940.25, 455,318.76 and 179,037.25

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Solution

The fourth proportional to 329,940.25, 455,318.76 and 179,037.25 is: 247,072.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,940.25 : 455,318.76 = 179,037.25 : x
  2. Step 2: Convert to fraction form
    329,940.25/455,318.76 = 179,037.25/x
  3. Step 3: Cross multiply
    329,940.25x = 455,318.76 × 179,037.25
  4. Step 4: Simplify right side
    329,940.25x = 81,519,018,663.81
  5. Step 5: Solve for x
    x = 81,519,018,663.81/329,940.25
  6. Step 6: Final answer
    x = 247,072.06

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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.