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Finding the Fourth Proportional to 269,886.20, 404,877.90 and 112,130.60

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Solution

The fourth proportional to 269,886.20, 404,877.90 and 112,130.60 is: 168,216.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,886.20 : 404,877.90 = 112,130.60 : x
  2. Step 2: Convert to fraction form
    269,886.20/404,877.90 = 112,130.60/x
  3. Step 3: Cross multiply
    269,886.20x = 404,877.90 × 112,130.60
  4. Step 4: Simplify right side
    269,886.20x = 45,399,201,853.74
  5. Step 5: Solve for x
    x = 45,399,201,853.74/269,886.20
  6. Step 6: Final answer
    x = 168,216.09

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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.