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Finding the Fourth Proportional to 146,563.60, 219,845.40 and 145,526.80

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Solution

The fourth proportional to 146,563.60, 219,845.40 and 145,526.80 is: 218,290.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,563.60 : 219,845.40 = 145,526.80 : x
  2. Step 2: Convert to fraction form
    146,563.60/219,845.40 = 145,526.80/x
  3. Step 3: Cross multiply
    146,563.60x = 219,845.40 × 145,526.80
  4. Step 4: Simplify right side
    146,563.60x = 31,993,397,556.72
  5. Step 5: Solve for x
    x = 31,993,397,556.72/146,563.60
  6. Step 6: Final answer
    x = 218,290.20

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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.