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Finding the Fourth Proportional to 193,231.52, 266,609 and 111,539.76

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Solution

The fourth proportional to 193,231.52, 266,609 and 111,539.76 is: 153,895.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,231.52 : 266,609 = 111,539.76 : x
  2. Step 2: Convert to fraction form
    193,231.52/266,609 = 111,539.76/x
  3. Step 3: Cross multiply
    193,231.52x = 266,609 × 111,539.76
  4. Step 4: Simplify right side
    193,231.52x = 29,737,503,873.84
  5. Step 5: Solve for x
    x = 29,737,503,873.84/193,231.52
  6. Step 6: Final answer
    x = 153,895.72

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.