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Finding the Fourth Proportional to 353,410.98, 529,746.30 and 173,247.54

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Solution

The fourth proportional to 353,410.98, 529,746.30 and 173,247.54 is: 259,689.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,410.98 : 529,746.30 = 173,247.54 : x
  2. Step 2: Convert to fraction form
    353,410.98/529,746.30 = 173,247.54/x
  3. Step 3: Cross multiply
    353,410.98x = 529,746.30 × 173,247.54
  4. Step 4: Simplify right side
    353,410.98x = 91,777,243,299.10
  5. Step 5: Solve for x
    x = 91,777,243,299.10/353,410.98
  6. Step 6: Final answer
    x = 259,689.85

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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.