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Finding the Fourth Proportional to 84,712.92, 116,872.92 and 50,722.44

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Solution

The fourth proportional to 84,712.92, 116,872.92 and 50,722.44 is: 69,978.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,712.92 : 116,872.92 = 50,722.44 : x
  2. Step 2: Convert to fraction form
    84,712.92/116,872.92 = 50,722.44/x
  3. Step 3: Cross multiply
    84,712.92x = 116,872.92 × 50,722.44
  4. Step 4: Simplify right side
    84,712.92x = 5,928,079,672.32
  5. Step 5: Solve for x
    x = 5,928,079,672.32/84,712.92
  6. Step 6: Final answer
    x = 69,978.46

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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.