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Finding the Fourth Proportional to 193,078,564.20, 289,617,846.30 and 193,078,564.20

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Solution

The fourth proportional to 193,078,564.20, 289,617,846.30 and 193,078,564.20 is: 289,617,846.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,078,564.20 : 289,617,846.30 = 193,078,564.20 : x
  2. Step 2: Convert to fraction form
    193,078,564.20/289,617,846.30 = 193,078,564.20/x
  3. Step 3: Cross multiply
    193,078,564.20x = 289,617,846.30 × 193,078,564.20
  4. Step 4: Simplify right side
    193,078,564.20x = 55,918,997,930,300,280
  5. Step 5: Solve for x
    x = 55,918,997,930,300,280/193,078,564.20
  6. Step 6: Final answer
    x = 289,617,846.30

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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.