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Finding the Fourth Proportional to 262,508.80, 393,957.60 and 173,732.80

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Solution

The fourth proportional to 262,508.80, 393,957.60 and 173,732.80 is: 260,727.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,508.80 : 393,957.60 = 173,732.80 : x
  2. Step 2: Convert to fraction form
    262,508.80/393,957.60 = 173,732.80/x
  3. Step 3: Cross multiply
    262,508.80x = 393,957.60 × 173,732.80
  4. Step 4: Simplify right side
    262,508.80x = 68,443,356,929.28
  5. Step 5: Solve for x
    x = 68,443,356,929.28/262,508.80
  6. Step 6: Final answer
    x = 260,727.86

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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.