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Finding the Fourth Proportional to 189,091.80, 260,940.24 and 104,208.84

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Solution

The fourth proportional to 189,091.80, 260,940.24 and 104,208.84 is: 143,804.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,091.80 : 260,940.24 = 104,208.84 : x
  2. Step 2: Convert to fraction form
    189,091.80/260,940.24 = 104,208.84/x
  3. Step 3: Cross multiply
    189,091.80x = 260,940.24 × 104,208.84
  4. Step 4: Simplify right side
    189,091.80x = 27,192,279,719.72
  5. Step 5: Solve for x
    x = 27,192,279,719.72/189,091.80
  6. Step 6: Final answer
    x = 143,804.65

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1.5x scale

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.