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Finding the Fourth Proportional to 615,529.50, 923,347.14 and 216,135.96

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Solution

The fourth proportional to 615,529.50, 923,347.14 and 216,135.96 is: 324,222.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,529.50 : 923,347.14 = 216,135.96 : x
  2. Step 2: Convert to fraction form
    615,529.50/923,347.14 = 216,135.96/x
  3. Step 3: Cross multiply
    615,529.50x = 923,347.14 × 216,135.96
  4. Step 4: Simplify right side
    615,529.50x = 199,568,520,517.15
  5. Step 5: Solve for x
    x = 199,568,520,517.15/615,529.50
  6. Step 6: Final answer
    x = 324,222.51

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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.