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Finding the Fourth Proportional to 193,428.68, 266,932.50 and 120,873.69

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Solution

The fourth proportional to 193,428.68, 266,932.50 and 120,873.69 is: 166,806.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,428.68 : 266,932.50 = 120,873.69 : x
  2. Step 2: Convert to fraction form
    193,428.68/266,932.50 = 120,873.69/x
  3. Step 3: Cross multiply
    193,428.68x = 266,932.50 × 120,873.69
  4. Step 4: Simplify right side
    193,428.68x = 32,265,116,255.93
  5. Step 5: Solve for x
    x = 32,265,116,255.93/193,428.68
  6. Step 6: Final answer
    x = 166,806.27

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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.