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Finding the Fourth Proportional to 79,249.79, 118,880.12 and 29,328.78

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Solution

The fourth proportional to 79,249.79, 118,880.12 and 29,328.78 is: 43,995.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,249.79 : 118,880.12 = 29,328.78 : x
  2. Step 2: Convert to fraction form
    79,249.79/118,880.12 = 29,328.78/x
  3. Step 3: Cross multiply
    79,249.79x = 118,880.12 × 29,328.78
  4. Step 4: Simplify right side
    79,249.79x = 3,486,609,404.98
  5. Step 5: Solve for x
    x = 3,486,609,404.98/79,249.79
  6. Step 6: Final answer
    x = 43,995.19

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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.