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Finding the Fourth Proportional to 189,616.37, 261,648.29 and 104,728.37

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Solution

The fourth proportional to 189,616.37, 261,648.29 and 104,728.37 is: 144,512.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,616.37 : 261,648.29 = 104,728.37 : x
  2. Step 2: Convert to fraction form
    189,616.37/261,648.29 = 104,728.37/x
  3. Step 3: Cross multiply
    189,616.37x = 261,648.29 × 104,728.37
  4. Step 4: Simplify right side
    189,616.37x = 27,401,997,878.57
  5. Step 5: Solve for x
    x = 27,401,997,878.57/189,616.37
  6. Step 6: Final answer
    x = 144,512.83

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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.