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Finding the Fourth Proportional to 114,246.76, 171,072.06 and 91,938.28

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Solution

The fourth proportional to 114,246.76, 171,072.06 and 91,938.28 is: 137,667.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,246.76 : 171,072.06 = 91,938.28 : x
  2. Step 2: Convert to fraction form
    114,246.76/171,072.06 = 91,938.28/x
  3. Step 3: Cross multiply
    114,246.76x = 171,072.06 × 91,938.28
  4. Step 4: Simplify right side
    114,246.76x = 15,728,070,952.46
  5. Step 5: Solve for x
    x = 15,728,070,952.46/114,246.76
  6. Step 6: Final answer
    x = 137,667.54

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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.