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Finding the Fourth Proportional to 332,971.56, 499,374.28 and 130,608.78

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Solution

The fourth proportional to 332,971.56, 499,374.28 and 130,608.78 is: 195,880.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,971.56 : 499,374.28 = 130,608.78 : x
  2. Step 2: Convert to fraction form
    332,971.56/499,374.28 = 130,608.78/x
  3. Step 3: Cross multiply
    332,971.56x = 499,374.28 × 130,608.78
  4. Step 4: Simplify right side
    332,971.56x = 65,222,665,474.18
  5. Step 5: Solve for x
    x = 65,222,665,474.18/332,971.56
  6. Step 6: Final answer
    x = 195,880.59

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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.