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Finding the Fourth Proportional to 176,734,927.44, 264,979,143.60 and 78,313,104

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Solution

The fourth proportional to 176,734,927.44, 264,979,143.60 and 78,313,104 is: 117,415,043.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,734,927.44 : 264,979,143.60 = 78,313,104 : x
  2. Step 2: Convert to fraction form
    176,734,927.44/264,979,143.60 = 78,313,104/x
  3. Step 3: Cross multiply
    176,734,927.44x = 264,979,143.60 × 78,313,104
  4. Step 4: Simplify right side
    176,734,927.44x = 20,751,339,230,577,732
  5. Step 5: Solve for x
    x = 20,751,339,230,577,732/176,734,927.44
  6. Step 6: Final answer
    x = 117,415,043.71

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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.