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Finding the Fourth Proportional to 223,208.72, 308,030.16 and 122,606.72

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Solution

The fourth proportional to 223,208.72, 308,030.16 and 122,606.72 is: 169,198.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,208.72 : 308,030.16 = 122,606.72 : x
  2. Step 2: Convert to fraction form
    223,208.72/308,030.16 = 122,606.72/x
  3. Step 3: Cross multiply
    223,208.72x = 308,030.16 × 122,606.72
  4. Step 4: Simplify right side
    223,208.72x = 37,766,567,578.68
  5. Step 5: Solve for x
    x = 37,766,567,578.68/223,208.72
  6. Step 6: Final answer
    x = 169,198.44

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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.