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Finding the Fourth Proportional to 173,939.40, 240,035.40 and 98,487.90

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Solution

The fourth proportional to 173,939.40, 240,035.40 and 98,487.90 is: 135,912.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,939.40 : 240,035.40 = 98,487.90 : x
  2. Step 2: Convert to fraction form
    173,939.40/240,035.40 = 98,487.90/x
  3. Step 3: Cross multiply
    173,939.40x = 240,035.40 × 98,487.90
  4. Step 4: Simplify right side
    173,939.40x = 23,640,582,471.66
  5. Step 5: Solve for x
    x = 23,640,582,471.66/173,939.40
  6. Step 6: Final answer
    x = 135,912.75

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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.