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Finding the Fourth Proportional to 268,909.80, 403,364.70 and 174,906.60

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Solution

The fourth proportional to 268,909.80, 403,364.70 and 174,906.60 is: 262,359.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,909.80 : 403,364.70 = 174,906.60 : x
  2. Step 2: Convert to fraction form
    268,909.80/403,364.70 = 174,906.60/x
  3. Step 3: Cross multiply
    268,909.80x = 403,364.70 × 174,906.60
  4. Step 4: Simplify right side
    268,909.80x = 70,551,148,237.02
  5. Step 5: Solve for x
    x = 70,551,148,237.02/268,909.80
  6. Step 6: Final answer
    x = 262,359.90

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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.