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Finding the Fourth Proportional to 156,026.44, 215,299.38 and 88,958.44

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Solution

The fourth proportional to 156,026.44, 215,299.38 and 88,958.44 is: 122,752.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,026.44 : 215,299.38 = 88,958.44 : x
  2. Step 2: Convert to fraction form
    156,026.44/215,299.38 = 88,958.44/x
  3. Step 3: Cross multiply
    156,026.44x = 215,299.38 × 88,958.44
  4. Step 4: Simplify right side
    156,026.44x = 19,152,696,977.77
  5. Step 5: Solve for x
    x = 19,152,696,977.77/156,026.44
  6. Step 6: Final answer
    x = 122,752.89

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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.