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Finding the Fourth Proportional to 262,506.80, 393,954.60 and 173,730.80

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Solution

The fourth proportional to 262,506.80, 393,954.60 and 173,730.80 is: 260,724.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,506.80 : 393,954.60 = 173,730.80 : x
  2. Step 2: Convert to fraction form
    262,506.80/393,954.60 = 173,730.80/x
  3. Step 3: Cross multiply
    262,506.80x = 393,954.60 × 173,730.80
  4. Step 4: Simplify right side
    262,506.80x = 68,442,047,821.68
  5. Step 5: Solve for x
    x = 68,442,047,821.68/262,506.80
  6. Step 6: Final answer
    x = 260,724.86

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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.