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Finding the Fourth Proportional to 169,918.20, 254,877.30 and 51,583.80

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Solution

The fourth proportional to 169,918.20, 254,877.30 and 51,583.80 is: 77,375.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,918.20 : 254,877.30 = 51,583.80 : x
  2. Step 2: Convert to fraction form
    169,918.20/254,877.30 = 51,583.80/x
  3. Step 3: Cross multiply
    169,918.20x = 254,877.30 × 51,583.80
  4. Step 4: Simplify right side
    169,918.20x = 13,147,539,667.74
  5. Step 5: Solve for x
    x = 13,147,539,667.74/169,918.20
  6. Step 6: Final answer
    x = 77,375.70

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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.