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Finding the Fourth Proportional to 201,244,507.20, 301,866,760.80 and 64,929,890.70

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Solution

The fourth proportional to 201,244,507.20, 301,866,760.80 and 64,929,890.70 is: 97,394,836.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,244,507.20 : 301,866,760.80 = 64,929,890.70 : x
  2. Step 2: Convert to fraction form
    201,244,507.20/301,866,760.80 = 64,929,890.70/x
  3. Step 3: Cross multiply
    201,244,507.20x = 301,866,760.80 × 64,929,890.70
  4. Step 4: Simplify right side
    201,244,507.20x = 19,600,175,784,707,048
  5. Step 5: Solve for x
    x = 19,600,175,784,707,048/201,244,507.20
  6. Step 6: Final answer
    x = 97,394,836.05

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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.