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Finding the Fourth Proportional to 86,213.99, 118,974.13 and 48,488.24

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Solution

The fourth proportional to 86,213.99, 118,974.13 and 48,488.24 is: 66,913.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,213.99 : 118,974.13 = 48,488.24 : x
  2. Step 2: Convert to fraction form
    86,213.99/118,974.13 = 48,488.24/x
  3. Step 3: Cross multiply
    86,213.99x = 118,974.13 × 48,488.24
  4. Step 4: Simplify right side
    86,213.99x = 5,768,846,169.23
  5. Step 5: Solve for x
    x = 5,768,846,169.23/86,213.99
  6. Step 6: Final answer
    x = 66,913.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.