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Finding the Fourth Proportional to 189,563.88, 285,470.76 and 168,801.96

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Solution

The fourth proportional to 189,563.88, 285,470.76 and 168,801.96 is: 254,204.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,563.88 : 285,470.76 = 168,801.96 : x
  2. Step 2: Convert to fraction form
    189,563.88/285,470.76 = 168,801.96/x
  3. Step 3: Cross multiply
    189,563.88x = 285,470.76 × 168,801.96
  4. Step 4: Simplify right side
    189,563.88x = 48,188,023,810.69
  5. Step 5: Solve for x
    x = 48,188,023,810.69/189,563.88
  6. Step 6: Final answer
    x = 254,204.67

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.