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Finding the Fourth Proportional to 72,233.36, 108,231.47 and 69,464.98

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Solution

The fourth proportional to 72,233.36, 108,231.47 and 69,464.98 is: 104,083.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,233.36 : 108,231.47 = 69,464.98 : x
  2. Step 2: Convert to fraction form
    72,233.36/108,231.47 = 69,464.98/x
  3. Step 3: Cross multiply
    72,233.36x = 108,231.47 × 69,464.98
  4. Step 4: Simplify right side
    72,233.36x = 7,518,296,898.92
  5. Step 5: Solve for x
    x = 7,518,296,898.92/72,233.36
  6. Step 6: Final answer
    x = 104,083.44

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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.