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Finding the Fourth Proportional to 330,713.72, 456,371.72 and 194,753.40

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Solution

The fourth proportional to 330,713.72, 456,371.72 and 194,753.40 is: 268,751.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,713.72 : 456,371.72 = 194,753.40 : x
  2. Step 2: Convert to fraction form
    330,713.72/456,371.72 = 194,753.40/x
  3. Step 3: Cross multiply
    330,713.72x = 456,371.72 × 194,753.40
  4. Step 4: Simplify right side
    330,713.72x = 88,879,942,179.01
  5. Step 5: Solve for x
    x = 88,879,942,179.01/330,713.72
  6. Step 6: Final answer
    x = 268,751.91

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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.