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Finding the Fourth Proportional to 268,246.80, 401,909.40 and 174,704.40

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Solution

The fourth proportional to 268,246.80, 401,909.40 and 174,704.40 is: 261,756.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,246.80 : 401,909.40 = 174,704.40 : x
  2. Step 2: Convert to fraction form
    268,246.80/401,909.40 = 174,704.40/x
  3. Step 3: Cross multiply
    268,246.80x = 401,909.40 × 174,704.40
  4. Step 4: Simplify right side
    268,246.80x = 70,215,340,581.36
  5. Step 5: Solve for x
    x = 70,215,340,581.36/268,246.80
  6. Step 6: Final answer
    x = 261,756.49

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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.