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Finding the Fourth Proportional to 144,859.62, 199,906.70 and 80,333.40

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Solution

The fourth proportional to 144,859.62, 199,906.70 and 80,333.40 is: 110,860.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,859.62 : 199,906.70 = 80,333.40 : x
  2. Step 2: Convert to fraction form
    144,859.62/199,906.70 = 80,333.40/x
  3. Step 3: Cross multiply
    144,859.62x = 199,906.70 × 80,333.40
  4. Step 4: Simplify right side
    144,859.62x = 16,059,184,893.78
  5. Step 5: Solve for x
    x = 16,059,184,893.78/144,859.62
  6. Step 6: Final answer
    x = 110,860.33

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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.