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Finding the Fourth Proportional to 223,367.64, 308,248.56 and 121,393.92

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Solution

The fourth proportional to 223,367.64, 308,248.56 and 121,393.92 is: 167,524.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,367.64 : 308,248.56 = 121,393.92 : x
  2. Step 2: Convert to fraction form
    223,367.64/308,248.56 = 121,393.92/x
  3. Step 3: Cross multiply
    223,367.64x = 308,248.56 × 121,393.92
  4. Step 4: Simplify right side
    223,367.64x = 37,419,501,032.76
  5. Step 5: Solve for x
    x = 37,419,501,032.76/223,367.64
  6. Step 6: Final answer
    x = 167,524.27

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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.