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Finding the Fourth Proportional to 73,562.16, 110,344.26 and 20,971.64

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Solution

The fourth proportional to 73,562.16, 110,344.26 and 20,971.64 is: 31,457.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,562.16 : 110,344.26 = 20,971.64 : x
  2. Step 2: Convert to fraction form
    73,562.16/110,344.26 = 20,971.64/x
  3. Step 3: Cross multiply
    73,562.16x = 110,344.26 × 20,971.64
  4. Step 4: Simplify right side
    73,562.16x = 2,314,100,096.79
  5. Step 5: Solve for x
    x = 2,314,100,096.79/73,562.16
  6. Step 6: Final answer
    x = 31,457.75

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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.