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Finding the Fourth Proportional to 73,978.13, 110,995.13 and 44,416.58

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Solution

The fourth proportional to 73,978.13, 110,995.13 and 44,416.58 is: 66,641.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,978.13 : 110,995.13 = 44,416.58 : x
  2. Step 2: Convert to fraction form
    73,978.13/110,995.13 = 44,416.58/x
  3. Step 3: Cross multiply
    73,978.13x = 110,995.13 × 44,416.58
  4. Step 4: Simplify right side
    73,978.13x = 4,930,023,627.32
  5. Step 5: Solve for x
    x = 4,930,023,627.32/73,978.13
  6. Step 6: Final answer
    x = 66,641.63

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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.