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Finding the Fourth Proportional to 101,762.66, 140,287.21 and 73,073.16

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Solution

The fourth proportional to 101,762.66, 140,287.21 and 73,073.16 is: 100,736.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,762.66 : 140,287.21 = 73,073.16 : x
  2. Step 2: Convert to fraction form
    101,762.66/140,287.21 = 73,073.16/x
  3. Step 3: Cross multiply
    101,762.66x = 140,287.21 × 73,073.16
  4. Step 4: Simplify right side
    101,762.66x = 10,251,229,559.60
  5. Step 5: Solve for x
    x = 10,251,229,559.60/101,762.66
  6. Step 6: Final answer
    x = 100,736.65

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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.