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Finding the Fourth Proportional to 210,356.99, 315,627.96 and 110,493.98

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Solution

The fourth proportional to 210,356.99, 315,627.96 and 110,493.98 is: 165,789.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,356.99 : 315,627.96 = 110,493.98 : x
  2. Step 2: Convert to fraction form
    210,356.99/315,627.96 = 110,493.98/x
  3. Step 3: Cross multiply
    210,356.99x = 315,627.96 × 110,493.98
  4. Step 4: Simplify right side
    210,356.99x = 34,874,989,499.68
  5. Step 5: Solve for x
    x = 34,874,989,499.68/210,356.99
  6. Step 6: Final answer
    x = 165,789.54

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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.