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Finding the Fourth Proportional to 329,931.56, 455,305.86 and 179,028.56

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Solution

The fourth proportional to 329,931.56, 455,305.86 and 179,028.56 is: 247,059.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,931.56 : 455,305.86 = 179,028.56 : x
  2. Step 2: Convert to fraction form
    329,931.56/455,305.86 = 179,028.56/x
  3. Step 3: Cross multiply
    329,931.56x = 455,305.86 × 179,028.56
  4. Step 4: Simplify right side
    329,931.56x = 81,512,753,613.63
  5. Step 5: Solve for x
    x = 81,512,753,613.63/329,931.56
  6. Step 6: Final answer
    x = 247,059.58

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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.