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Finding the Fourth Proportional to 161,906.80, 242,860.20 and 158,796.40

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Solution

The fourth proportional to 161,906.80, 242,860.20 and 158,796.40 is: 238,194.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,906.80 : 242,860.20 = 158,796.40 : x
  2. Step 2: Convert to fraction form
    161,906.80/242,860.20 = 158,796.40/x
  3. Step 3: Cross multiply
    161,906.80x = 242,860.20 × 158,796.40
  4. Step 4: Simplify right side
    161,906.80x = 38,565,325,463.28
  5. Step 5: Solve for x
    x = 38,565,325,463.28/161,906.80
  6. Step 6: Final answer
    x = 238,194.60

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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.