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Finding the Fourth Proportional to 329,955.72, 455,338.90 and 179,052.72

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Solution

The fourth proportional to 329,955.72, 455,338.90 and 179,052.72 is: 247,092.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,955.72 : 455,338.90 = 179,052.72 : x
  2. Step 2: Convert to fraction form
    329,955.72/455,338.90 = 179,052.72/x
  3. Step 3: Cross multiply
    329,955.72x = 455,338.90 × 179,052.72
  4. Step 4: Simplify right side
    329,955.72x = 81,529,666,290.11
  5. Step 5: Solve for x
    x = 81,529,666,290.11/329,955.72
  6. Step 6: Final answer
    x = 247,092.75

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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.