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Finding the Fourth Proportional to 72,453.95, 99,967.52 and 41,819.54

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Solution

The fourth proportional to 72,453.95, 99,967.52 and 41,819.54 is: 57,700.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,453.95 : 99,967.52 = 41,819.54 : x
  2. Step 2: Convert to fraction form
    72,453.95/99,967.52 = 41,819.54/x
  3. Step 3: Cross multiply
    72,453.95x = 99,967.52 × 41,819.54
  4. Step 4: Simplify right side
    72,453.95x = 4,180,594,992.41
  5. Step 5: Solve for x
    x = 4,180,594,992.41/72,453.95
  6. Step 6: Final answer
    x = 57,700.03

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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.