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Finding the Fourth Proportional to 268,006.60, 401,664.30 and 162,713.80

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Solution

The fourth proportional to 268,006.60, 401,664.30 and 162,713.80 is: 243,860.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,006.60 : 401,664.30 = 162,713.80 : x
  2. Step 2: Convert to fraction form
    268,006.60/401,664.30 = 162,713.80/x
  3. Step 3: Cross multiply
    268,006.60x = 401,664.30 × 162,713.80
  4. Step 4: Simplify right side
    268,006.60x = 65,356,324,577.34
  5. Step 5: Solve for x
    x = 65,356,324,577.34/268,006.60
  6. Step 6: Final answer
    x = 243,860.88

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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.