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Finding the Fourth Proportional to 73,201.28, 100,978.80 and 44,529.71

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Solution

The fourth proportional to 73,201.28, 100,978.80 and 44,529.71 is: 61,427.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,201.28 : 100,978.80 = 44,529.71 : x
  2. Step 2: Convert to fraction form
    73,201.28/100,978.80 = 44,529.71/x
  3. Step 3: Cross multiply
    73,201.28x = 100,978.80 × 44,529.71
  4. Step 4: Simplify right side
    73,201.28x = 4,496,556,968.75
  5. Step 5: Solve for x
    x = 4,496,556,968.75/73,201.28
  6. Step 6: Final answer
    x = 61,427.30

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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.