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Finding the Fourth Proportional to 88,398.27, 132,597.41 and 72,783.09

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Solution

The fourth proportional to 88,398.27, 132,597.41 and 72,783.09 is: 109,174.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,398.27 : 132,597.41 = 72,783.09 : x
  2. Step 2: Convert to fraction form
    88,398.27/132,597.41 = 72,783.09/x
  3. Step 3: Cross multiply
    88,398.27x = 132,597.41 × 72,783.09
  4. Step 4: Simplify right side
    88,398.27x = 9,650,848,861.88
  5. Step 5: Solve for x
    x = 9,650,848,861.88/88,398.27
  6. Step 6: Final answer
    x = 109,174.64

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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.