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Finding the Fourth Proportional to 73,975.96, 111,021.48 and 51,644.32

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Solution

The fourth proportional to 73,975.96, 111,021.48 and 51,644.32 is: 77,506.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,975.96 : 111,021.48 = 51,644.32 : x
  2. Step 2: Convert to fraction form
    73,975.96/111,021.48 = 51,644.32/x
  3. Step 3: Cross multiply
    73,975.96x = 111,021.48 × 51,644.32
  4. Step 4: Simplify right side
    73,975.96x = 5,733,628,026.66
  5. Step 5: Solve for x
    x = 5,733,628,026.66/73,975.96
  6. Step 6: Final answer
    x = 77,506.64

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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.