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Finding the Fourth Proportional to 276,683.82, 381,850.89 and 161,955.50

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Solution

The fourth proportional to 276,683.82, 381,850.89 and 161,955.50 is: 223,514.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,683.82 : 381,850.89 = 161,955.50 : x
  2. Step 2: Convert to fraction form
    276,683.82/381,850.89 = 161,955.50/x
  3. Step 3: Cross multiply
    276,683.82x = 381,850.89 × 161,955.50
  4. Step 4: Simplify right side
    276,683.82x = 61,842,852,357.72
  5. Step 5: Solve for x
    x = 61,842,852,357.72/276,683.82
  6. Step 6: Final answer
    x = 223,514.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.