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Finding the Fourth Proportional to 201,953,121.90, 302,173,855.65 and 133,928,673.90

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Solution

The fourth proportional to 201,953,121.90, 302,173,855.65 and 133,928,673.90 is: 200,391,771.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,953,121.90 : 302,173,855.65 = 133,928,673.90 : x
  2. Step 2: Convert to fraction form
    201,953,121.90/302,173,855.65 = 133,928,673.90/x
  3. Step 3: Cross multiply
    201,953,121.90x = 302,173,855.65 × 133,928,673.90
  4. Step 4: Simplify right side
    201,953,121.90x = 40,469,743,774,454,520
  5. Step 5: Solve for x
    x = 40,469,743,774,454,520/201,953,121.90
  6. Step 6: Final answer
    x = 200,391,771.09

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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.