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Finding the Fourth Proportional to 329,252.16, 493,878.24 and 79,932.48

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Solution

The fourth proportional to 329,252.16, 493,878.24 and 79,932.48 is: 119,898.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,252.16 : 493,878.24 = 79,932.48 : x
  2. Step 2: Convert to fraction form
    329,252.16/493,878.24 = 79,932.48/x
  3. Step 3: Cross multiply
    329,252.16x = 493,878.24 × 79,932.48
  4. Step 4: Simplify right side
    329,252.16x = 39,476,912,541.24
  5. Step 5: Solve for x
    x = 39,476,912,541.24/329,252.16
  6. Step 6: Final answer
    x = 119,898.72

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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.