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Finding the Fourth Proportional to 230,994.72, 318,770.28 and 135,483.30

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Solution

The fourth proportional to 230,994.72, 318,770.28 and 135,483.30 is: 186,965.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,994.72 : 318,770.28 = 135,483.30 : x
  2. Step 2: Convert to fraction form
    230,994.72/318,770.28 = 135,483.30/x
  3. Step 3: Cross multiply
    230,994.72x = 318,770.28 × 135,483.30
  4. Step 4: Simplify right side
    230,994.72x = 43,188,049,476.32
  5. Step 5: Solve for x
    x = 43,188,049,476.32/230,994.72
  6. Step 6: Final answer
    x = 186,965.53

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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.