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Finding the Fourth Proportional to 189,285.88, 261,214.59 and 104,408.41

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Solution

The fourth proportional to 189,285.88, 261,214.59 and 104,408.41 is: 144,083.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,285.88 : 261,214.59 = 104,408.41 : x
  2. Step 2: Convert to fraction form
    189,285.88/261,214.59 = 104,408.41/x
  3. Step 3: Cross multiply
    189,285.88x = 261,214.59 × 104,408.41
  4. Step 4: Simplify right side
    189,285.88x = 27,273,000,010.70
  5. Step 5: Solve for x
    x = 27,273,000,010.70/189,285.88
  6. Step 6: Final answer
    x = 144,083.65

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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.