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Finding the Fourth Proportional to 223,736.57, 308,770.24 and 128,257.62

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Solution

The fourth proportional to 223,736.57, 308,770.24 and 128,257.62 is: 177,003.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,736.57 : 308,770.24 = 128,257.62 : x
  2. Step 2: Convert to fraction form
    223,736.57/308,770.24 = 128,257.62/x
  3. Step 3: Cross multiply
    223,736.57x = 308,770.24 × 128,257.62
  4. Step 4: Simplify right side
    223,736.57x = 39,602,136,109.23
  5. Step 5: Solve for x
    x = 39,602,136,109.23/223,736.57
  6. Step 6: Final answer
    x = 177,003.41

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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.