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Finding the Fourth Proportional to 73,978.50, 110,995.68 and 44,416.98

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Solution

The fourth proportional to 73,978.50, 110,995.68 and 44,416.98 is: 66,642.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,978.50 : 110,995.68 = 44,416.98 : x
  2. Step 2: Convert to fraction form
    73,978.50/110,995.68 = 44,416.98/x
  3. Step 3: Cross multiply
    73,978.50x = 110,995.68 × 44,416.98
  4. Step 4: Simplify right side
    73,978.50x = 4,930,092,898.65
  5. Step 5: Solve for x
    x = 4,930,092,898.65/73,978.50
  6. Step 6: Final answer
    x = 66,642.24

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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.