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Finding the Fourth Proportional to 268,255.68, 401,989.68 and 134,952.72

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Solution

The fourth proportional to 268,255.68, 401,989.68 and 134,952.72 is: 202,230.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,255.68 : 401,989.68 = 134,952.72 : x
  2. Step 2: Convert to fraction form
    268,255.68/401,989.68 = 134,952.72/x
  3. Step 3: Cross multiply
    268,255.68x = 401,989.68 × 134,952.72
  4. Step 4: Simplify right side
    268,255.68x = 54,249,600,727.93
  5. Step 5: Solve for x
    x = 54,249,600,727.93/268,255.68
  6. Step 6: Final answer
    x = 202,230.95

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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.