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Finding the Fourth Proportional to 201,895,912.60, 302,843,868.90 and 65,595,074.20

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Solution

The fourth proportional to 201,895,912.60, 302,843,868.90 and 65,595,074.20 is: 98,392,611.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,895,912.60 : 302,843,868.90 = 65,595,074.20 : x
  2. Step 2: Convert to fraction form
    201,895,912.60/302,843,868.90 = 65,595,074.20/x
  3. Step 3: Cross multiply
    201,895,912.60x = 302,843,868.90 × 65,595,074.20
  4. Step 4: Simplify right side
    201,895,912.60x = 19,865,066,051,510,572
  5. Step 5: Solve for x
    x = 19,865,066,051,510,572/201,895,912.60
  6. Step 6: Final answer
    x = 98,392,611.30

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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.