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Finding the Fourth Proportional to 189,033.98, 260,866.73 and 104,151.03

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Solution

The fourth proportional to 189,033.98, 260,866.73 and 104,151.03 is: 143,728.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,033.98 : 260,866.73 = 104,151.03 : x
  2. Step 2: Convert to fraction form
    189,033.98/260,866.73 = 104,151.03/x
  3. Step 3: Cross multiply
    189,033.98x = 260,866.73 × 104,151.03
  4. Step 4: Simplify right side
    189,033.98x = 27,169,538,101.48
  5. Step 5: Solve for x
    x = 27,169,538,101.48/189,033.98
  6. Step 6: Final answer
    x = 143,728.33

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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.