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Finding the Fourth Proportional to 320,804,978.70, 481,207,468.05 and 116,339,724.30

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Solution

The fourth proportional to 320,804,978.70, 481,207,468.05 and 116,339,724.30 is: 174,509,586.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,804,978.70 : 481,207,468.05 = 116,339,724.30 : x
  2. Step 2: Convert to fraction form
    320,804,978.70/481,207,468.05 = 116,339,724.30/x
  3. Step 3: Cross multiply
    320,804,978.70x = 481,207,468.05 × 116,339,724.30
  4. Step 4: Simplify right side
    320,804,978.70x = 55,983,544,164,038,056
  5. Step 5: Solve for x
    x = 55,983,544,164,038,056/320,804,978.70
  6. Step 6: Final answer
    x = 174,509,586.45

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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.