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Finding the Fourth Proportional to 201,920.88, 302,546.52 and 122,795.76

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Solution

The fourth proportional to 201,920.88, 302,546.52 and 122,795.76 is: 183,990.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,920.88 : 302,546.52 = 122,795.76 : x
  2. Step 2: Convert to fraction form
    201,920.88/302,546.52 = 122,795.76/x
  3. Step 3: Cross multiply
    201,920.88x = 302,546.52 × 122,795.76
  4. Step 4: Simplify right side
    201,920.88x = 37,151,429,858.76
  5. Step 5: Solve for x
    x = 37,151,429,858.76/201,920.88
  6. Step 6: Final answer
    x = 183,990.04

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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.