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Finding the Fourth Proportional to 223,428.75, 308,329.50 and 166,323.43

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Solution

The fourth proportional to 223,428.75, 308,329.50 and 166,323.43 is: 229,524.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,428.75 : 308,329.50 = 166,323.43 : x
  2. Step 2: Convert to fraction form
    223,428.75/308,329.50 = 166,323.43/x
  3. Step 3: Cross multiply
    223,428.75x = 308,329.50 × 166,323.43
  4. Step 4: Simplify right side
    223,428.75x = 51,282,420,010.19
  5. Step 5: Solve for x
    x = 51,282,420,010.19/223,428.75
  6. Step 6: Final answer
    x = 229,524.71

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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.