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Finding the Fourth Proportional to 156,523.51, 216,006.31 and 88,537.28

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Solution

The fourth proportional to 156,523.51, 216,006.31 and 88,537.28 is: 122,183.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,523.51 : 216,006.31 = 88,537.28 : x
  2. Step 2: Convert to fraction form
    156,523.51/216,006.31 = 88,537.28/x
  3. Step 3: Cross multiply
    156,523.51x = 216,006.31 × 88,537.28
  4. Step 4: Simplify right side
    156,523.51x = 19,124,610,414.88
  5. Step 5: Solve for x
    x = 19,124,610,414.88/156,523.51
  6. Step 6: Final answer
    x = 122,183.63

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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.