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Finding the Fourth Proportional to 85,251.91, 117,644.93 and 47,013.07

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Solution

The fourth proportional to 85,251.91, 117,644.93 and 47,013.07 is: 64,876.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,251.91 : 117,644.93 = 47,013.07 : x
  2. Step 2: Convert to fraction form
    85,251.91/117,644.93 = 47,013.07/x
  3. Step 3: Cross multiply
    85,251.91x = 117,644.93 × 47,013.07
  4. Step 4: Simplify right side
    85,251.91x = 5,530,848,741.01
  5. Step 5: Solve for x
    x = 5,530,848,741.01/85,251.91
  6. Step 6: Final answer
    x = 64,876.54

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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.