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Finding the Fourth Proportional to 139,992,642.30, 195,536,202.90 and 139,992,642.30

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Solution

The fourth proportional to 139,992,642.30, 195,536,202.90 and 139,992,642.30 is: 195,536,202.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,992,642.30 : 195,536,202.90 = 139,992,642.30 : x
  2. Step 2: Convert to fraction form
    139,992,642.30/195,536,202.90 = 139,992,642.30/x
  3. Step 3: Cross multiply
    139,992,642.30x = 195,536,202.90 × 139,992,642.30
  4. Step 4: Simplify right side
    139,992,642.30x = 27,373,629,709,279,924
  5. Step 5: Solve for x
    x = 27,373,629,709,279,924/139,992,642.30
  6. Step 6: Final answer
    x = 195,536,202.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.