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Finding the Fourth Proportional to 218,603.52, 327,951.36 and 70,848

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Solution

The fourth proportional to 218,603.52, 327,951.36 and 70,848 is: 106,286.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,603.52 : 327,951.36 = 70,848 : x
  2. Step 2: Convert to fraction form
    218,603.52/327,951.36 = 70,848/x
  3. Step 3: Cross multiply
    218,603.52x = 327,951.36 × 70,848
  4. Step 4: Simplify right side
    218,603.52x = 23,234,697,953.28
  5. Step 5: Solve for x
    x = 23,234,697,953.28/218,603.52
  6. Step 6: Final answer
    x = 106,286.93

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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.