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Finding the Fourth Proportional to 139,091,661.40, 195,131,433.80 and 139,091,661.40

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Solution

The fourth proportional to 139,091,661.40, 195,131,433.80 and 139,091,661.40 is: 195,131,433.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,091,661.40 : 195,131,433.80 = 139,091,661.40 : x
  2. Step 2: Convert to fraction form
    139,091,661.40/195,131,433.80 = 139,091,661.40/x
  3. Step 3: Cross multiply
    139,091,661.40x = 195,131,433.80 × 139,091,661.40
  4. Step 4: Simplify right side
    139,091,661.40x = 27,141,155,318,606,120
  5. Step 5: Solve for x
    x = 27,141,155,318,606,120/139,091,661.40
  6. Step 6: Final answer
    x = 195,131,433.80

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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.