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Finding the Fourth Proportional to 235,409.74, 353,061.36 and 66,926.33

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Solution

The fourth proportional to 235,409.74, 353,061.36 and 66,926.33 is: 100,374.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,409.74 : 353,061.36 = 66,926.33 : x
  2. Step 2: Convert to fraction form
    235,409.74/353,061.36 = 66,926.33/x
  3. Step 3: Cross multiply
    235,409.74x = 353,061.36 × 66,926.33
  4. Step 4: Simplify right side
    235,409.74x = 23,629,099,324.30
  5. Step 5: Solve for x
    x = 23,629,099,324.30/235,409.74
  6. Step 6: Final answer
    x = 100,374.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.