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Finding the Fourth Proportional to 262,580.80, 394,065.60 and 173,804.80

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Solution

The fourth proportional to 262,580.80, 394,065.60 and 173,804.80 is: 260,835.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,580.80 : 394,065.60 = 173,804.80 : x
  2. Step 2: Convert to fraction form
    262,580.80/394,065.60 = 173,804.80/x
  3. Step 3: Cross multiply
    262,580.80x = 394,065.60 × 173,804.80
  4. Step 4: Simplify right side
    262,580.80x = 68,490,492,794.88
  5. Step 5: Solve for x
    x = 68,490,492,794.88/262,580.80
  6. Step 6: Final answer
    x = 260,835.88

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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.