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Finding the Fourth Proportional to 88,694.96, 132,971.80 and 51,212.52

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Solution

The fourth proportional to 88,694.96, 132,971.80 and 51,212.52 is: 76,777.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,694.96 : 132,971.80 = 51,212.52 : x
  2. Step 2: Convert to fraction form
    88,694.96/132,971.80 = 51,212.52/x
  3. Step 3: Cross multiply
    88,694.96x = 132,971.80 × 51,212.52
  4. Step 4: Simplify right side
    88,694.96x = 6,809,820,302.08
  5. Step 5: Solve for x
    x = 6,809,820,302.08/88,694.96
  6. Step 6: Final answer
    x = 76,777.98

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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.