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Finding the Fourth Proportional to 485,286,834, 727,930,251 and 162,170,706

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Solution

The fourth proportional to 485,286,834, 727,930,251 and 162,170,706 is: 243,256,059

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,286,834 : 727,930,251 = 162,170,706 : x
  2. Step 2: Convert to fraction form
    485,286,834/727,930,251 = 162,170,706/x
  3. Step 3: Cross multiply
    485,286,834x = 727,930,251 × 162,170,706
  4. Step 4: Simplify right side
    485,286,834x = 118,048,962,723,427,200
  5. Step 5: Solve for x
    x = 118,048,962,723,427,200/485,286,834
  6. Step 6: Final answer
    x = 243,256,059

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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.