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Finding the Fourth Proportional to 223,793.56, 308,841.56 and 121,825.60

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Solution

The fourth proportional to 223,793.56, 308,841.56 and 121,825.60 is: 168,122.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,793.56 : 308,841.56 = 121,825.60 : x
  2. Step 2: Convert to fraction form
    223,793.56/308,841.56 = 121,825.60/x
  3. Step 3: Cross multiply
    223,793.56x = 308,841.56 × 121,825.60
  4. Step 4: Simplify right side
    223,793.56x = 37,624,808,351.94
  5. Step 5: Solve for x
    x = 37,624,808,351.94/223,793.56
  6. Step 6: Final answer
    x = 168,122.84

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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.