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Finding the Fourth Proportional to 201,659,794.90, 302,237,749.95 and 147,744,121.30

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Solution

The fourth proportional to 201,659,794.90, 302,237,749.95 and 147,744,121.30 is: 221,431,598.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,659,794.90 : 302,237,749.95 = 147,744,121.30 : x
  2. Step 2: Convert to fraction form
    201,659,794.90/302,237,749.95 = 147,744,121.30/x
  3. Step 3: Cross multiply
    201,659,794.90x = 302,237,749.95 × 147,744,121.30
  4. Step 4: Simplify right side
    201,659,794.90x = 44,653,850,790,051,872
  5. Step 5: Solve for x
    x = 44,653,850,790,051,872/201,659,794.90
  6. Step 6: Final answer
    x = 221,431,598.76

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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.