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Finding the Fourth Proportional to 80,829,662.53, 111,544,978.95 and 43,659,942.59

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Solution

The fourth proportional to 80,829,662.53, 111,544,978.95 and 43,659,942.59 is: 60,250,744.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,829,662.53 : 111,544,978.95 = 43,659,942.59 : x
  2. Step 2: Convert to fraction form
    80,829,662.53/111,544,978.95 = 43,659,942.59/x
  3. Step 3: Cross multiply
    80,829,662.53x = 111,544,978.95 × 43,659,942.59
  4. Step 4: Simplify right side
    80,829,662.53x = 4,870,047,376,602,034
  5. Step 5: Solve for x
    x = 4,870,047,376,602,034/80,829,662.53
  6. Step 6: Final answer
    x = 60,250,744.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.