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Finding the Fourth Proportional to 329,136.03, 493,700.40 and 104,490.43

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Solution

The fourth proportional to 329,136.03, 493,700.40 and 104,490.43 is: 156,734.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,136.03 : 493,700.40 = 104,490.43 : x
  2. Step 2: Convert to fraction form
    329,136.03/493,700.40 = 104,490.43/x
  3. Step 3: Cross multiply
    329,136.03x = 493,700.40 × 104,490.43
  4. Step 4: Simplify right side
    329,136.03x = 51,586,965,852.92
  5. Step 5: Solve for x
    x = 51,586,965,852.92/329,136.03
  6. Step 6: Final answer
    x = 156,734.48

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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.