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Finding the Fourth Proportional to 134,543,403.90, 188,488,311.30 and 134,543,403.90

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Solution

The fourth proportional to 134,543,403.90, 188,488,311.30 and 134,543,403.90 is: 188,488,311.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,543,403.90 : 188,488,311.30 = 134,543,403.90 : x
  2. Step 2: Convert to fraction form
    134,543,403.90/188,488,311.30 = 134,543,403.90/x
  3. Step 3: Cross multiply
    134,543,403.90x = 188,488,311.30 × 134,543,403.90
  4. Step 4: Simplify right side
    134,543,403.90x = 25,359,858,997,664,836
  5. Step 5: Solve for x
    x = 25,359,858,997,664,836/134,543,403.90
  6. Step 6: Final answer
    x = 188,488,311.30

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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.