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Finding the Fourth Proportional to 173,090.80, 259,344.60 and 84,152.80

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Solution

The fourth proportional to 173,090.80, 259,344.60 and 84,152.80 is: 126,087.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,090.80 : 259,344.60 = 84,152.80 : x
  2. Step 2: Convert to fraction form
    173,090.80/259,344.60 = 84,152.80/x
  3. Step 3: Cross multiply
    173,090.80x = 259,344.60 × 84,152.80
  4. Step 4: Simplify right side
    173,090.80x = 21,824,574,254.88
  5. Step 5: Solve for x
    x = 21,824,574,254.88/173,090.80
  6. Step 6: Final answer
    x = 126,087.43

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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.