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Finding the Fourth Proportional to 203,003.64, 304,525.92 and 69,866.40

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Solution

The fourth proportional to 203,003.64, 304,525.92 and 69,866.40 is: 104,806.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,003.64 : 304,525.92 = 69,866.40 : x
  2. Step 2: Convert to fraction form
    203,003.64/304,525.92 = 69,866.40/x
  3. Step 3: Cross multiply
    203,003.64x = 304,525.92 × 69,866.40
  4. Step 4: Simplify right side
    203,003.64x = 21,276,129,737.09
  5. Step 5: Solve for x
    x = 21,276,129,737.09/203,003.64
  6. Step 6: Final answer
    x = 104,806.64

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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.