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Finding the Fourth Proportional to 329,777.65, 494,502.68 and 105,108.85

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Solution

The fourth proportional to 329,777.65, 494,502.68 and 105,108.85 is: 157,611.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,777.65 : 494,502.68 = 105,108.85 : x
  2. Step 2: Convert to fraction form
    329,777.65/494,502.68 = 105,108.85/x
  3. Step 3: Cross multiply
    329,777.65x = 494,502.68 × 105,108.85
  4. Step 4: Simplify right side
    329,777.65x = 51,976,607,491.17
  5. Step 5: Solve for x
    x = 51,976,607,491.17/329,777.65
  6. Step 6: Final answer
    x = 157,611.07

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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.