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Finding the Fourth Proportional to 329,642.88, 454,907.46 and 178,739.88

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Solution

The fourth proportional to 329,642.88, 454,907.46 and 178,739.88 is: 246,661.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,642.88 : 454,907.46 = 178,739.88 : x
  2. Step 2: Convert to fraction form
    329,642.88/454,907.46 = 178,739.88/x
  3. Step 3: Cross multiply
    329,642.88x = 454,907.46 × 178,739.88
  4. Step 4: Simplify right side
    329,642.88x = 81,310,104,811.50
  5. Step 5: Solve for x
    x = 81,310,104,811.50/329,642.88
  6. Step 6: Final answer
    x = 246,661.19

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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.