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Finding the Fourth Proportional to 85,793.49, 118,406.61 and 49,994.73

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Solution

The fourth proportional to 85,793.49, 118,406.61 and 49,994.73 is: 68,999.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,793.49 : 118,406.61 = 49,994.73 : x
  2. Step 2: Convert to fraction form
    85,793.49/118,406.61 = 49,994.73/x
  3. Step 3: Cross multiply
    85,793.49x = 118,406.61 × 49,994.73
  4. Step 4: Simplify right side
    85,793.49x = 5,919,706,497.17
  5. Step 5: Solve for x
    x = 5,919,706,497.17/85,793.49
  6. Step 6: Final answer
    x = 68,999.48

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Double scale
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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.