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Finding the Fourth Proportional to 83,670,453.85, 125,505,680.78 and 83,670,453.85

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Solution

The fourth proportional to 83,670,453.85, 125,505,680.78 and 83,670,453.85 is: 125,505,680.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,670,453.85 : 125,505,680.78 = 83,670,453.85 : x
  2. Step 2: Convert to fraction form
    83,670,453.85/125,505,680.78 = 83,670,453.85/x
  3. Step 3: Cross multiply
    83,670,453.85x = 125,505,680.78 × 83,670,453.85
  4. Step 4: Simplify right side
    83,670,453.85x = 10,501,117,271,615,822
  5. Step 5: Solve for x
    x = 10,501,117,271,615,822/83,670,453.85
  6. Step 6: Final answer
    x = 125,505,680.78

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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.