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Finding the Fourth Proportional to 101,951.44, 140,688.42 and 56,632.54

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Solution

The fourth proportional to 101,951.44, 140,688.42 and 56,632.54 is: 78,150.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,951.44 : 140,688.42 = 56,632.54 : x
  2. Step 2: Convert to fraction form
    101,951.44/140,688.42 = 56,632.54/x
  3. Step 3: Cross multiply
    101,951.44x = 140,688.42 × 56,632.54
  4. Step 4: Simplify right side
    101,951.44x = 7,967,542,573.19
  5. Step 5: Solve for x
    x = 7,967,542,573.19/101,951.44
  6. Step 6: Final answer
    x = 78,150.37

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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.