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Finding the Fourth Proportional to 73,806.36, 110,697.48 and 21,203.88

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Solution

The fourth proportional to 73,806.36, 110,697.48 and 21,203.88 is: 31,802.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,806.36 : 110,697.48 = 21,203.88 : x
  2. Step 2: Convert to fraction form
    73,806.36/110,697.48 = 21,203.88/x
  3. Step 3: Cross multiply
    73,806.36x = 110,697.48 × 21,203.88
  4. Step 4: Simplify right side
    73,806.36x = 2,347,216,082.22
  5. Step 5: Solve for x
    x = 2,347,216,082.22/73,806.36
  6. Step 6: Final answer
    x = 31,802.36

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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.