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Finding the Fourth Proportional to 173,266.40, 259,705.20 and 98,422.40

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Solution

The fourth proportional to 173,266.40, 259,705.20 and 98,422.40 is: 147,523.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,266.40 : 259,705.20 = 98,422.40 : x
  2. Step 2: Convert to fraction form
    173,266.40/259,705.20 = 98,422.40/x
  3. Step 3: Cross multiply
    173,266.40x = 259,705.20 × 98,422.40
  4. Step 4: Simplify right side
    173,266.40x = 25,560,809,076.48
  5. Step 5: Solve for x
    x = 25,560,809,076.48/173,266.40
  6. Step 6: Final answer
    x = 147,523.17

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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.