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Finding the Fourth Proportional to 262,814.80, 394,416.60 and 174,038.80

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Solution

The fourth proportional to 262,814.80, 394,416.60 and 174,038.80 is: 261,186.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,814.80 : 394,416.60 = 174,038.80 : x
  2. Step 2: Convert to fraction form
    262,814.80/394,416.60 = 174,038.80/x
  3. Step 3: Cross multiply
    262,814.80x = 394,416.60 × 174,038.80
  4. Step 4: Simplify right side
    262,814.80x = 68,643,791,764.08
  5. Step 5: Solve for x
    x = 68,643,791,764.08/262,814.80
  6. Step 6: Final answer
    x = 261,186.93

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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.