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Finding the Fourth Proportional to 224,518.31, 336,831.29 and 74,759.96

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Solution

The fourth proportional to 224,518.31, 336,831.29 and 74,759.96 is: 112,157.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,518.31 : 336,831.29 = 74,759.96 : x
  2. Step 2: Convert to fraction form
    224,518.31/336,831.29 = 74,759.96/x
  3. Step 3: Cross multiply
    224,518.31x = 336,831.29 × 74,759.96
  4. Step 4: Simplify right side
    224,518.31x = 25,181,494,936.30
  5. Step 5: Solve for x
    x = 25,181,494,936.30/224,518.31
  6. Step 6: Final answer
    x = 112,157.87

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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.