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Finding the Fourth Proportional to 185,998.88, 278,896.26 and 86,104.01

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Solution

The fourth proportional to 185,998.88, 278,896.26 and 86,104.01 is: 129,108.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,998.88 : 278,896.26 = 86,104.01 : x
  2. Step 2: Convert to fraction form
    185,998.88/278,896.26 = 86,104.01/x
  3. Step 3: Cross multiply
    185,998.88x = 278,896.26 × 86,104.01
  4. Step 4: Simplify right side
    185,998.88x = 24,014,087,380.13
  5. Step 5: Solve for x
    x = 24,014,087,380.13/185,998.88
  6. Step 6: Final answer
    x = 129,108.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.