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Finding the Fourth Proportional to 193,078,679.70, 289,618,019.55 and 193,078,679.70

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Solution

The fourth proportional to 193,078,679.70, 289,618,019.55 and 193,078,679.70 is: 289,618,019.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,078,679.70 : 289,618,019.55 = 193,078,679.70 : x
  2. Step 2: Convert to fraction form
    193,078,679.70/289,618,019.55 = 193,078,679.70/x
  3. Step 3: Cross multiply
    193,078,679.70x = 289,618,019.55 × 193,078,679.70
  4. Step 4: Simplify right side
    193,078,679.70x = 55,919,064,832,042,784
  5. Step 5: Solve for x
    x = 55,919,064,832,042,784/193,078,679.70
  6. Step 6: Final answer
    x = 289,618,019.55

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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.