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Finding the Fourth Proportional to 139,056,161.90, 195,081,734.50 and 139,056,161.90

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Solution

The fourth proportional to 139,056,161.90, 195,081,734.50 and 139,056,161.90 is: 195,081,734.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,056,161.90 : 195,081,734.50 = 139,056,161.90 : x
  2. Step 2: Convert to fraction form
    139,056,161.90/195,081,734.50 = 139,056,161.90/x
  3. Step 3: Cross multiply
    139,056,161.90x = 195,081,734.50 × 139,056,161.90
  4. Step 4: Simplify right side
    139,056,161.90x = 27,127,317,256,364,816
  5. Step 5: Solve for x
    x = 27,127,317,256,364,816/139,056,161.90
  6. Step 6: Final answer
    x = 195,081,734.50

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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.