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Finding the Fourth Proportional to 329,153.10, 493,729.68 and 79,835.10

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Solution

The fourth proportional to 329,153.10, 493,729.68 and 79,835.10 is: 119,752.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,153.10 : 493,729.68 = 79,835.10 : x
  2. Step 2: Convert to fraction form
    329,153.10/493,729.68 = 79,835.10/x
  3. Step 3: Cross multiply
    329,153.10x = 493,729.68 × 79,835.10
  4. Step 4: Simplify right side
    329,153.10x = 39,416,958,375.77
  5. Step 5: Solve for x
    x = 39,416,958,375.77/329,153.10
  6. Step 6: Final answer
    x = 119,752.66

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1.5x scale

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.