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Finding the Fourth Proportional to 189,826.62, 261,947.58 and 104,937

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Solution

The fourth proportional to 189,826.62, 261,947.58 and 104,937 is: 144,805.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,826.62 : 261,947.58 = 104,937 : x
  2. Step 2: Convert to fraction form
    189,826.62/261,947.58 = 104,937/x
  3. Step 3: Cross multiply
    189,826.62x = 261,947.58 × 104,937
  4. Step 4: Simplify right side
    189,826.62x = 27,487,993,202.46
  5. Step 5: Solve for x
    x = 27,487,993,202.46/189,826.62
  6. Step 6: Final answer
    x = 144,805.79

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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.