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Finding the Fourth Proportional to 86,377.99, 119,205.69 and 50,579.54

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Solution

The fourth proportional to 86,377.99, 119,205.69 and 50,579.54 is: 69,802.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,377.99 : 119,205.69 = 50,579.54 : x
  2. Step 2: Convert to fraction form
    86,377.99/119,205.69 = 50,579.54/x
  3. Step 3: Cross multiply
    86,377.99x = 119,205.69 × 50,579.54
  4. Step 4: Simplify right side
    86,377.99x = 6,029,368,179.88
  5. Step 5: Solve for x
    x = 6,029,368,179.88/86,377.99
  6. Step 6: Final answer
    x = 69,802.13

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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.