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Finding the Fourth Proportional to 113,614.96, 156,789.26 and 65,896.60

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Solution

The fourth proportional to 113,614.96, 156,789.26 and 65,896.60 is: 90,937.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,614.96 : 156,789.26 = 65,896.60 : x
  2. Step 2: Convert to fraction form
    113,614.96/156,789.26 = 65,896.60/x
  3. Step 3: Cross multiply
    113,614.96x = 156,789.26 × 65,896.60
  4. Step 4: Simplify right side
    113,614.96x = 10,331,879,150.52
  5. Step 5: Solve for x
    x = 10,331,879,150.52/113,614.96
  6. Step 6: Final answer
    x = 90,937.66

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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.