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Finding the Fourth Proportional to 72,610.96, 100,197.64 and 40,773.64

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Solution

The fourth proportional to 72,610.96, 100,197.64 and 40,773.64 is: 56,264.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,610.96 : 100,197.64 = 40,773.64 : x
  2. Step 2: Convert to fraction form
    72,610.96/100,197.64 = 40,773.64/x
  3. Step 3: Cross multiply
    72,610.96x = 100,197.64 × 40,773.64
  4. Step 4: Simplify right side
    72,610.96x = 4,085,422,502.21
  5. Step 5: Solve for x
    x = 4,085,422,502.21/72,610.96
  6. Step 6: Final answer
    x = 56,264.54

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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.