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Finding the Fourth Proportional to 216,633.92, 324,069.60 and 183,145.28

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Solution

The fourth proportional to 216,633.92, 324,069.60 and 183,145.28 is: 273,972.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,633.92 : 324,069.60 = 183,145.28 : x
  2. Step 2: Convert to fraction form
    216,633.92/324,069.60 = 183,145.28/x
  3. Step 3: Cross multiply
    216,633.92x = 324,069.60 × 183,145.28
  4. Step 4: Simplify right side
    216,633.92x = 59,351,817,631.49
  5. Step 5: Solve for x
    x = 59,351,817,631.49/216,633.92
  6. Step 6: Final answer
    x = 273,972.87

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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.