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Finding the Fourth Proportional to 273,490.20, 410,040.90 and 104,945.40

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Solution

The fourth proportional to 273,490.20, 410,040.90 and 104,945.40 is: 157,343.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,490.20 : 410,040.90 = 104,945.40 : x
  2. Step 2: Convert to fraction form
    273,490.20/410,040.90 = 104,945.40/x
  3. Step 3: Cross multiply
    273,490.20x = 410,040.90 × 104,945.40
  4. Step 4: Simplify right side
    273,490.20x = 43,031,906,266.86
  5. Step 5: Solve for x
    x = 43,031,906,266.86/273,490.20
  6. Step 6: Final answer
    x = 157,343.50

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1.5x scale

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.