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Finding the Fourth Proportional to 276,812.11, 382,000.70 and 149,487.70

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Solution

The fourth proportional to 276,812.11, 382,000.70 and 149,487.70 is: 206,293.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,812.11 : 382,000.70 = 149,487.70 : x
  2. Step 2: Convert to fraction form
    276,812.11/382,000.70 = 149,487.70/x
  3. Step 3: Cross multiply
    276,812.11x = 382,000.70 × 149,487.70
  4. Step 4: Simplify right side
    276,812.11x = 57,104,404,131.39
  5. Step 5: Solve for x
    x = 57,104,404,131.39/276,812.11
  6. Step 6: Final answer
    x = 206,293.01

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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.