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Finding the Fourth Proportional to 173,137.80, 259,706.70 and 84,564.30

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Solution

The fourth proportional to 173,137.80, 259,706.70 and 84,564.30 is: 126,846.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,137.80 : 259,706.70 = 84,564.30 : x
  2. Step 2: Convert to fraction form
    173,137.80/259,706.70 = 84,564.30/x
  3. Step 3: Cross multiply
    173,137.80x = 259,706.70 × 84,564.30
  4. Step 4: Simplify right side
    173,137.80x = 21,961,915,290.81
  5. Step 5: Solve for x
    x = 21,961,915,290.81/173,137.80
  6. Step 6: Final answer
    x = 126,846.45

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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.