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Finding the Fourth Proportional to 85,625.92, 118,164.24 and 49,816.96

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Solution

The fourth proportional to 85,625.92, 118,164.24 and 49,816.96 is: 68,747.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,625.92 : 118,164.24 = 49,816.96 : x
  2. Step 2: Convert to fraction form
    85,625.92/118,164.24 = 49,816.96/x
  3. Step 3: Cross multiply
    85,625.92x = 118,164.24 × 49,816.96
  4. Step 4: Simplify right side
    85,625.92x = 5,886,583,217.51
  5. Step 5: Solve for x
    x = 5,886,583,217.51/85,625.92
  6. Step 6: Final answer
    x = 68,747.68

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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.