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Finding the Fourth Proportional to 79,706.15, 119,555.08 and 29,782.30

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Solution

The fourth proportional to 79,706.15, 119,555.08 and 29,782.30 is: 44,671.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,706.15 : 119,555.08 = 29,782.30 : x
  2. Step 2: Convert to fraction form
    79,706.15/119,555.08 = 29,782.30/x
  3. Step 3: Cross multiply
    79,706.15x = 119,555.08 × 29,782.30
  4. Step 4: Simplify right side
    79,706.15x = 3,560,625,259.08
  5. Step 5: Solve for x
    x = 3,560,625,259.08/79,706.15
  6. Step 6: Final answer
    x = 44,671.90

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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.