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Finding the Fourth Proportional to 339,877.25, 469,030.61 and 188,974.25

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Solution

The fourth proportional to 339,877.25, 469,030.61 and 188,974.25 is: 260,784.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,877.25 : 469,030.61 = 188,974.25 : x
  2. Step 2: Convert to fraction form
    339,877.25/469,030.61 = 188,974.25/x
  3. Step 3: Cross multiply
    339,877.25x = 469,030.61 × 188,974.25
  4. Step 4: Simplify right side
    339,877.25x = 88,634,706,806.92
  5. Step 5: Solve for x
    x = 88,634,706,806.92/339,877.25
  6. Step 6: Final answer
    x = 260,784.47

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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.