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Finding the Fourth Proportional to 262,977.30, 393,481.80 and 174,403.80

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Solution

The fourth proportional to 262,977.30, 393,481.80 and 174,403.80 is: 260,953.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,977.30 : 393,481.80 = 174,403.80 : x
  2. Step 2: Convert to fraction form
    262,977.30/393,481.80 = 174,403.80/x
  3. Step 3: Cross multiply
    262,977.30x = 393,481.80 × 174,403.80
  4. Step 4: Simplify right side
    262,977.30x = 68,624,721,150.84
  5. Step 5: Solve for x
    x = 68,624,721,150.84/262,977.30
  6. Step 6: Final answer
    x = 260,953.02

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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.