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Finding the Fourth Proportional to 105,906.80, 158,860.20 and 88,410.80

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Solution

The fourth proportional to 105,906.80, 158,860.20 and 88,410.80 is: 132,616.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,906.80 : 158,860.20 = 88,410.80 : x
  2. Step 2: Convert to fraction form
    105,906.80/158,860.20 = 88,410.80/x
  3. Step 3: Cross multiply
    105,906.80x = 158,860.20 × 88,410.80
  4. Step 4: Simplify right side
    105,906.80x = 14,044,957,370.16
  5. Step 5: Solve for x
    x = 14,044,957,370.16/105,906.80
  6. Step 6: Final answer
    x = 132,616.20

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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.