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Finding the Fourth Proportional to 187,843.80, 259,223.85 and 101,805.30

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Solution

The fourth proportional to 187,843.80, 259,223.85 and 101,805.30 is: 140,490.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,843.80 : 259,223.85 = 101,805.30 : x
  2. Step 2: Convert to fraction form
    187,843.80/259,223.85 = 101,805.30/x
  3. Step 3: Cross multiply
    187,843.80x = 259,223.85 × 101,805.30
  4. Step 4: Simplify right side
    187,843.80x = 26,390,361,816.41
  5. Step 5: Solve for x
    x = 26,390,361,816.41/187,843.80
  6. Step 6: Final answer
    x = 140,490.99

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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.