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Finding the Fourth Proportional to 173,106.68, 258,976.76 and 131,107.77

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Solution

The fourth proportional to 173,106.68, 258,976.76 and 131,107.77 is: 196,144.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,106.68 : 258,976.76 = 131,107.77 : x
  2. Step 2: Convert to fraction form
    173,106.68/258,976.76 = 131,107.77/x
  3. Step 3: Cross multiply
    173,106.68x = 258,976.76 × 131,107.77
  4. Step 4: Simplify right side
    173,106.68x = 33,953,864,829.89
  5. Step 5: Solve for x
    x = 33,953,864,829.89/173,106.68
  6. Step 6: Final answer
    x = 196,144.17

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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.