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Finding the Fourth Proportional to 619,519.65, 929,289.73 and 170,237.74

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Solution

The fourth proportional to 619,519.65, 929,289.73 and 170,237.74 is: 255,359.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,519.65 : 929,289.73 = 170,237.74 : x
  2. Step 2: Convert to fraction form
    619,519.65/929,289.73 = 170,237.74/x
  3. Step 3: Cross multiply
    619,519.65x = 929,289.73 × 170,237.74
  4. Step 4: Simplify right side
    619,519.65x = 158,200,183,440.41
  5. Step 5: Solve for x
    x = 158,200,183,440.41/619,519.65
  6. Step 6: Final answer
    x = 255,359.43

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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.