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Finding the Fourth Proportional to 72,845.22, 100,520.28 and 44,545.44

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Solution

The fourth proportional to 72,845.22, 100,520.28 and 44,545.44 is: 61,468.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,845.22 : 100,520.28 = 44,545.44 : x
  2. Step 2: Convert to fraction form
    72,845.22/100,520.28 = 44,545.44/x
  3. Step 3: Cross multiply
    72,845.22x = 100,520.28 × 44,545.44
  4. Step 4: Simplify right side
    72,845.22x = 4,477,720,101.52
  5. Step 5: Solve for x
    x = 4,477,720,101.52/72,845.22
  6. Step 6: Final answer
    x = 61,468.96

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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.