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Finding the Fourth Proportional to 329,134.50, 493,703.37 and 79,816.50

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Solution

The fourth proportional to 329,134.50, 493,703.37 and 79,816.50 is: 119,725.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,134.50 : 493,703.37 = 79,816.50 : x
  2. Step 2: Convert to fraction form
    329,134.50/493,703.37 = 79,816.50/x
  3. Step 3: Cross multiply
    329,134.50x = 493,703.37 × 79,816.50
  4. Step 4: Simplify right side
    329,134.50x = 39,405,675,031.61
  5. Step 5: Solve for x
    x = 39,405,675,031.61/329,134.50
  6. Step 6: Final answer
    x = 119,725.14

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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.