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Finding the Fourth Proportional to 269,813.54, 372,340.60 and 148,955

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Solution

The fourth proportional to 269,813.54, 372,340.60 and 148,955 is: 205,556.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,813.54 : 372,340.60 = 148,955 : x
  2. Step 2: Convert to fraction form
    269,813.54/372,340.60 = 148,955/x
  3. Step 3: Cross multiply
    269,813.54x = 372,340.60 × 148,955
  4. Step 4: Simplify right side
    269,813.54x = 55,461,994,073
  5. Step 5: Solve for x
    x = 55,461,994,073/269,813.54
  6. Step 6: Final answer
    x = 205,556.75

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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.