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Finding the Fourth Proportional to 252,912.70, 379,308.30 and 146,065.60

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Solution

The fourth proportional to 252,912.70, 379,308.30 and 146,065.60 is: 219,063.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,912.70 : 379,308.30 = 146,065.60 : x
  2. Step 2: Convert to fraction form
    252,912.70/379,308.30 = 146,065.60/x
  3. Step 3: Cross multiply
    252,912.70x = 379,308.30 × 146,065.60
  4. Step 4: Simplify right side
    252,912.70x = 55,403,894,424.48
  5. Step 5: Solve for x
    x = 55,403,894,424.48/252,912.70
  6. Step 6: Final answer
    x = 219,063.31

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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.