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Finding the Fourth Proportional to 139,056,130.40, 195,081,690.40 and 139,056,130.40

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Solution

The fourth proportional to 139,056,130.40, 195,081,690.40 and 139,056,130.40 is: 195,081,690.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,056,130.40 : 195,081,690.40 = 139,056,130.40 : x
  2. Step 2: Convert to fraction form
    139,056,130.40/195,081,690.40 = 139,056,130.40/x
  3. Step 3: Cross multiply
    139,056,130.40x = 195,081,690.40 × 139,056,130.40
  4. Step 4: Simplify right side
    139,056,130.40x = 27,127,304,978,914,832
  5. Step 5: Solve for x
    x = 27,127,304,978,914,832/139,056,130.40
  6. Step 6: Final answer
    x = 195,081,690.40

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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.