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Finding the Fourth Proportional to 267,505.21, 401,225.01 and 155,246.50

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Solution

The fourth proportional to 267,505.21, 401,225.01 and 155,246.50 is: 232,850.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,505.21 : 401,225.01 = 155,246.50 : x
  2. Step 2: Convert to fraction form
    267,505.21/401,225.01 = 155,246.50/x
  3. Step 3: Cross multiply
    267,505.21x = 401,225.01 × 155,246.50
  4. Step 4: Simplify right side
    267,505.21x = 62,288,778,514.97
  5. Step 5: Solve for x
    x = 62,288,778,514.97/267,505.21
  6. Step 6: Final answer
    x = 232,850.71

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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.