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Finding the Fourth Proportional to 189,093.36, 260,947.52 and 104,210.50

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Solution

The fourth proportional to 189,093.36, 260,947.52 and 104,210.50 is: 143,809.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,093.36 : 260,947.52 = 104,210.50 : x
  2. Step 2: Convert to fraction form
    189,093.36/260,947.52 = 104,210.50/x
  3. Step 3: Cross multiply
    189,093.36x = 260,947.52 × 104,210.50
  4. Step 4: Simplify right side
    189,093.36x = 27,193,471,532.96
  5. Step 5: Solve for x
    x = 27,193,471,532.96/189,093.36
  6. Step 6: Final answer
    x = 143,809.76

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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.