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Finding the Fourth Proportional to 126,326,441.80, 189,489,662.70 and 126,326,441.80

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Solution

The fourth proportional to 126,326,441.80, 189,489,662.70 and 126,326,441.80 is: 189,489,662.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,326,441.80 : 189,489,662.70 = 126,326,441.80 : x
  2. Step 2: Convert to fraction form
    126,326,441.80/189,489,662.70 = 126,326,441.80/x
  3. Step 3: Cross multiply
    126,326,441.80x = 189,489,662.70 × 126,326,441.80
  4. Step 4: Simplify right side
    126,326,441.80x = 23,937,554,846,773,180
  5. Step 5: Solve for x
    x = 23,937,554,846,773,180/126,326,441.80
  6. Step 6: Final answer
    x = 189,489,662.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.