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Finding the Fourth Proportional to 174,930.30, 261,790.65 and 104,859.90

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Solution

The fourth proportional to 174,930.30, 261,790.65 and 104,859.90 is: 156,927.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,930.30 : 261,790.65 = 104,859.90 : x
  2. Step 2: Convert to fraction form
    174,930.30/261,790.65 = 104,859.90/x
  3. Step 3: Cross multiply
    174,930.30x = 261,790.65 × 104,859.90
  4. Step 4: Simplify right side
    174,930.30x = 27,451,341,379.94
  5. Step 5: Solve for x
    x = 27,451,341,379.94/174,930.30
  6. Step 6: Final answer
    x = 156,927.31

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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.