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Finding the Fourth Proportional to 103,156,735.90, 154,735,103.85 and 103,156,735.90

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Solution

The fourth proportional to 103,156,735.90, 154,735,103.85 and 103,156,735.90 is: 154,735,103.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,156,735.90 : 154,735,103.85 = 103,156,735.90 : x
  2. Step 2: Convert to fraction form
    103,156,735.90/154,735,103.85 = 103,156,735.90/x
  3. Step 3: Cross multiply
    103,156,735.90x = 154,735,103.85 × 103,156,735.90
  4. Step 4: Simplify right side
    103,156,735.90x = 15,961,968,242,313,524
  5. Step 5: Solve for x
    x = 15,961,968,242,313,524/103,156,735.90
  6. Step 6: Final answer
    x = 154,735,103.85

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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.