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Finding the Fourth Proportional to 86,193, 118,960.95 and 49,889.19

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Solution

The fourth proportional to 86,193, 118,960.95 and 49,889.19 is: 68,855.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,193 : 118,960.95 = 49,889.19 : x
  2. Step 2: Convert to fraction form
    86,193/118,960.95 = 49,889.19/x
  3. Step 3: Cross multiply
    86,193x = 118,960.95 × 49,889.19
  4. Step 4: Simplify right side
    86,193x = 5,934,865,437.13
  5. Step 5: Solve for x
    x = 5,934,865,437.13/86,193
  6. Step 6: Final answer
    x = 68,855.54

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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.