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Finding the Fourth Proportional to 72,524.70, 108,507.60 and 44,438.76

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Solution

The fourth proportional to 72,524.70, 108,507.60 and 44,438.76 is: 66,486.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,524.70 : 108,507.60 = 44,438.76 : x
  2. Step 2: Convert to fraction form
    72,524.70/108,507.60 = 44,438.76/x
  3. Step 3: Cross multiply
    72,524.70x = 108,507.60 × 44,438.76
  4. Step 4: Simplify right side
    72,524.70x = 4,821,943,194.58
  5. Step 5: Solve for x
    x = 4,821,943,194.58/72,524.70
  6. Step 6: Final answer
    x = 66,486.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.