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Finding the Fourth Proportional to 619,313.10, 928,996.65 and 170,022.30

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Solution

The fourth proportional to 619,313.10, 928,996.65 and 170,022.30 is: 255,040.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,313.10 : 928,996.65 = 170,022.30 : x
  2. Step 2: Convert to fraction form
    619,313.10/928,996.65 = 170,022.30/x
  3. Step 3: Cross multiply
    619,313.10x = 928,996.65 × 170,022.30
  4. Step 4: Simplify right side
    619,313.10x = 157,950,147,125.30
  5. Step 5: Solve for x
    x = 157,950,147,125.30/619,313.10
  6. Step 6: Final answer
    x = 255,040.86

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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.