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Finding the Fourth Proportional to 144,493.63, 199,396.30 and 79,965.60

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Solution

The fourth proportional to 144,493.63, 199,396.30 and 79,965.60 is: 110,349.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,493.63 : 199,396.30 = 79,965.60 : x
  2. Step 2: Convert to fraction form
    144,493.63/199,396.30 = 79,965.60/x
  3. Step 3: Cross multiply
    144,493.63x = 199,396.30 × 79,965.60
  4. Step 4: Simplify right side
    144,493.63x = 15,944,844,767.28
  5. Step 5: Solve for x
    x = 15,944,844,767.28/144,493.63
  6. Step 6: Final answer
    x = 110,349.81

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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.