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Finding the Fourth Proportional to 283,453, 391,136.76 and 174,539.88

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Solution

The fourth proportional to 283,453, 391,136.76 and 174,539.88 is: 240,847.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,453 : 391,136.76 = 174,539.88 : x
  2. Step 2: Convert to fraction form
    283,453/391,136.76 = 174,539.88/x
  3. Step 3: Cross multiply
    283,453x = 391,136.76 × 174,539.88
  4. Step 4: Simplify right side
    283,453x = 68,268,963,153.99
  5. Step 5: Solve for x
    x = 68,268,963,153.99/283,453
  6. Step 6: Final answer
    x = 240,847.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.