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Finding the Fourth Proportional to 189,055.89, 260,886.83 and 104,166.27

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Solution

The fourth proportional to 189,055.89, 260,886.83 and 104,166.27 is: 143,743.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,055.89 : 260,886.83 = 104,166.27 : x
  2. Step 2: Convert to fraction form
    189,055.89/260,886.83 = 104,166.27/x
  3. Step 3: Cross multiply
    189,055.89x = 260,886.83 × 104,166.27
  4. Step 4: Simplify right side
    189,055.89x = 27,175,607,452.39
  5. Step 5: Solve for x
    x = 27,175,607,452.39/189,055.89
  6. Step 6: Final answer
    x = 143,743.78

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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.