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Finding the Fourth Proportional to 169,893.39, 254,840.89 and 51,565.75

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Solution

The fourth proportional to 169,893.39, 254,840.89 and 51,565.75 is: 77,348.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,893.39 : 254,840.89 = 51,565.75 : x
  2. Step 2: Convert to fraction form
    169,893.39/254,840.89 = 51,565.75/x
  3. Step 3: Cross multiply
    169,893.39x = 254,840.89 × 51,565.75
  4. Step 4: Simplify right side
    169,893.39x = 13,141,061,494.60
  5. Step 5: Solve for x
    x = 13,141,061,494.60/169,893.39
  6. Step 6: Final answer
    x = 77,348.87

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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.