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Finding the Fourth Proportional to 175,635.40, 263,453.10 and 172,563.40

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Solution

The fourth proportional to 175,635.40, 263,453.10 and 172,563.40 is: 258,845.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,635.40 : 263,453.10 = 172,563.40 : x
  2. Step 2: Convert to fraction form
    175,635.40/263,453.10 = 172,563.40/x
  3. Step 3: Cross multiply
    175,635.40x = 263,453.10 × 172,563.40
  4. Step 4: Simplify right side
    175,635.40x = 45,462,362,676.54
  5. Step 5: Solve for x
    x = 45,462,362,676.54/175,635.40
  6. Step 6: Final answer
    x = 258,845.10

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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.