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Finding the Fourth Proportional to 88,076.99, 132,129.27 and 28,899.20

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Solution

The fourth proportional to 88,076.99, 132,129.27 and 28,899.20 is: 43,353.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,076.99 : 132,129.27 = 28,899.20 : x
  2. Step 2: Convert to fraction form
    88,076.99/132,129.27 = 28,899.20/x
  3. Step 3: Cross multiply
    88,076.99x = 132,129.27 × 28,899.20
  4. Step 4: Simplify right side
    88,076.99x = 3,818,430,529.91
  5. Step 5: Solve for x
    x = 3,818,430,529.91/88,076.99
  6. Step 6: Final answer
    x = 43,353.33

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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.