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Finding the Fourth Proportional to 79,915.83, 119,857.28 and 29,993.91

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Solution

The fourth proportional to 79,915.83, 119,857.28 and 29,993.91 is: 44,984.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,915.83 : 119,857.28 = 29,993.91 : x
  2. Step 2: Convert to fraction form
    79,915.83/119,857.28 = 29,993.91/x
  3. Step 3: Cross multiply
    79,915.83x = 119,857.28 × 29,993.91
  4. Step 4: Simplify right side
    79,915.83x = 3,594,988,319.20
  5. Step 5: Solve for x
    x = 3,594,988,319.20/79,915.83
  6. Step 6: Final answer
    x = 44,984.68

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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.