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Finding the Fourth Proportional to 268,933.40, 403,400.10 and 169,400.60

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Solution

The fourth proportional to 268,933.40, 403,400.10 and 169,400.60 is: 254,100.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,933.40 : 403,400.10 = 169,400.60 : x
  2. Step 2: Convert to fraction form
    268,933.40/403,400.10 = 169,400.60/x
  3. Step 3: Cross multiply
    268,933.40x = 403,400.10 × 169,400.60
  4. Step 4: Simplify right side
    268,933.40x = 68,336,218,980.06
  5. Step 5: Solve for x
    x = 68,336,218,980.06/268,933.40
  6. Step 6: Final answer
    x = 254,100.90

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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.