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Finding the Fourth Proportional to 216,553.22, 324,826.20 and 64,750.64

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Solution

The fourth proportional to 216,553.22, 324,826.20 and 64,750.64 is: 97,124.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,553.22 : 324,826.20 = 64,750.64 : x
  2. Step 2: Convert to fraction form
    216,553.22/324,826.20 = 64,750.64/x
  3. Step 3: Cross multiply
    216,553.22x = 324,826.20 × 64,750.64
  4. Step 4: Simplify right side
    216,553.22x = 21,032,704,338.77
  5. Step 5: Solve for x
    x = 21,032,704,338.77/216,553.22
  6. Step 6: Final answer
    x = 97,124.87

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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.