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Finding the Fourth Proportional to 168,548.80, 252,823.20 and 147,812.80

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Solution

The fourth proportional to 168,548.80, 252,823.20 and 147,812.80 is: 221,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,548.80 : 252,823.20 = 147,812.80 : x
  2. Step 2: Convert to fraction form
    168,548.80/252,823.20 = 147,812.80/x
  3. Step 3: Cross multiply
    168,548.80x = 252,823.20 × 147,812.80
  4. Step 4: Simplify right side
    168,548.80x = 37,370,505,096.96
  5. Step 5: Solve for x
    x = 37,370,505,096.96/168,548.80
  6. Step 6: Final answer
    x = 221,719.20

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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.