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Finding the Fourth Proportional to 338,940.70, 467,779.64 and 195,700.50

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Solution

The fourth proportional to 338,940.70, 467,779.64 and 195,700.50 is: 270,090.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,940.70 : 467,779.64 = 195,700.50 : x
  2. Step 2: Convert to fraction form
    338,940.70/467,779.64 = 195,700.50/x
  3. Step 3: Cross multiply
    338,940.70x = 467,779.64 × 195,700.50
  4. Step 4: Simplify right side
    338,940.70x = 91,544,709,437.82
  5. Step 5: Solve for x
    x = 91,544,709,437.82/338,940.70
  6. Step 6: Final answer
    x = 270,090.64

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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.