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Finding the Fourth Proportional to 223,525.28, 308,458.72 and 122,923.28

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Solution

The fourth proportional to 223,525.28, 308,458.72 and 122,923.28 is: 169,630.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,525.28 : 308,458.72 = 122,923.28 : x
  2. Step 2: Convert to fraction form
    223,525.28/308,458.72 = 122,923.28/x
  3. Step 3: Cross multiply
    223,525.28x = 308,458.72 × 122,923.28
  4. Step 4: Simplify right side
    223,525.28x = 37,916,757,607.00
  5. Step 5: Solve for x
    x = 37,916,757,607.00/223,525.28
  6. Step 6: Final answer
    x = 169,630.74

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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.