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Finding the Fourth Proportional to 164,638.98, 246,846.10 and 87,713.48

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Solution

The fourth proportional to 164,638.98, 246,846.10 and 87,713.48 is: 131,510.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,638.98 : 246,846.10 = 87,713.48 : x
  2. Step 2: Convert to fraction form
    164,638.98/246,846.10 = 87,713.48/x
  3. Step 3: Cross multiply
    164,638.98x = 246,846.10 × 87,713.48
  4. Step 4: Simplify right side
    164,638.98x = 21,651,731,017.72
  5. Step 5: Solve for x
    x = 21,651,731,017.72/164,638.98
  6. Step 6: Final answer
    x = 131,510.36

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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.