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Finding the Fourth Proportional to 173,334.90, 259,722.90 and 98,231.70

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Solution

The fourth proportional to 173,334.90, 259,722.90 and 98,231.70 is: 147,189.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,334.90 : 259,722.90 = 98,231.70 : x
  2. Step 2: Convert to fraction form
    173,334.90/259,722.90 = 98,231.70/x
  3. Step 3: Cross multiply
    173,334.90x = 259,722.90 × 98,231.70
  4. Step 4: Simplify right side
    173,334.90x = 25,513,021,995.93
  5. Step 5: Solve for x
    x = 25,513,021,995.93/173,334.90
  6. Step 6: Final answer
    x = 147,189.18

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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.