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Finding the Fourth Proportional to 88,143.50, 121,625.79 and 51,846.59

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Solution

The fourth proportional to 88,143.50, 121,625.79 and 51,846.59 is: 71,541.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,143.50 : 121,625.79 = 51,846.59 : x
  2. Step 2: Convert to fraction form
    88,143.50/121,625.79 = 51,846.59/x
  3. Step 3: Cross multiply
    88,143.50x = 121,625.79 × 51,846.59
  4. Step 4: Simplify right side
    88,143.50x = 6,305,882,577.20
  5. Step 5: Solve for x
    x = 6,305,882,577.20/88,143.50
  6. Step 6: Final answer
    x = 71,541.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.