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Finding the Fourth Proportional to 72,650.88, 100,255.68 and 44,403.84

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Solution

The fourth proportional to 72,650.88, 100,255.68 and 44,403.84 is: 61,275.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,650.88 : 100,255.68 = 44,403.84 : x
  2. Step 2: Convert to fraction form
    72,650.88/100,255.68 = 44,403.84/x
  3. Step 3: Cross multiply
    72,650.88x = 100,255.68 × 44,403.84
  4. Step 4: Simplify right side
    72,650.88x = 4,451,737,173.81
  5. Step 5: Solve for x
    x = 4,451,737,173.81/72,650.88
  6. Step 6: Final answer
    x = 61,275.75

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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.