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Finding the Fourth Proportional to 268,049.70, 401,491.35 and 162,684.90

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Solution

The fourth proportional to 268,049.70, 401,491.35 and 162,684.90 is: 243,673.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,049.70 : 401,491.35 = 162,684.90 : x
  2. Step 2: Convert to fraction form
    268,049.70/401,491.35 = 162,684.90/x
  3. Step 3: Cross multiply
    268,049.70x = 401,491.35 × 162,684.90
  4. Step 4: Simplify right side
    268,049.70x = 65,316,580,125.62
  5. Step 5: Solve for x
    x = 65,316,580,125.62/268,049.70
  6. Step 6: Final answer
    x = 243,673.39

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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.