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Finding the Fourth Proportional to 189,490.88, 261,490.60 and 104,606.12

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Solution

The fourth proportional to 189,490.88, 261,490.60 and 104,606.12 is: 144,352.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,490.88 : 261,490.60 = 104,606.12 : x
  2. Step 2: Convert to fraction form
    189,490.88/261,490.60 = 104,606.12/x
  3. Step 3: Cross multiply
    189,490.88x = 261,490.60 × 104,606.12
  4. Step 4: Simplify right side
    189,490.88x = 27,353,517,082.47
  5. Step 5: Solve for x
    x = 27,353,517,082.47/189,490.88
  6. Step 6: Final answer
    x = 144,352.68

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.