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Finding the Fourth Proportional to 329,118.54, 493,694.72 and 92,479.67

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Solution

The fourth proportional to 329,118.54, 493,694.72 and 92,479.67 is: 138,724.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,118.54 : 493,694.72 = 92,479.67 : x
  2. Step 2: Convert to fraction form
    329,118.54/493,694.72 = 92,479.67/x
  3. Step 3: Cross multiply
    329,118.54x = 493,694.72 × 92,479.67
  4. Step 4: Simplify right side
    329,118.54x = 45,656,721,855.47
  5. Step 5: Solve for x
    x = 45,656,721,855.47/329,118.54
  6. Step 6: Final answer
    x = 138,724.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.