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Finding the Fourth Proportional to 267,661.29, 401,364.86 and 155,375.94

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Solution

The fourth proportional to 267,661.29, 401,364.86 and 155,375.94 is: 232,990.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,661.29 : 401,364.86 = 155,375.94 : x
  2. Step 2: Convert to fraction form
    267,661.29/401,364.86 = 155,375.94/x
  3. Step 3: Cross multiply
    267,661.29x = 401,364.86 × 155,375.94
  4. Step 4: Simplify right side
    267,661.29x = 62,362,441,628.59
  5. Step 5: Solve for x
    x = 62,362,441,628.59/267,661.29
  6. Step 6: Final answer
    x = 232,990.14

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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.