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Finding the Fourth Proportional to 189,054.01, 260,892.87 and 104,170.45

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Solution

The fourth proportional to 189,054.01, 260,892.87 and 104,170.45 is: 143,754.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,054.01 : 260,892.87 = 104,170.45 : x
  2. Step 2: Convert to fraction form
    189,054.01/260,892.87 = 104,170.45/x
  3. Step 3: Cross multiply
    189,054.01x = 260,892.87 × 104,170.45
  4. Step 4: Simplify right side
    189,054.01x = 27,177,327,669.69
  5. Step 5: Solve for x
    x = 27,177,327,669.69/189,054.01
  6. Step 6: Final answer
    x = 143,754.30

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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.