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Finding the Fourth Proportional to 169,588.35, 254,388.24 and 85,302.56

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Solution

The fourth proportional to 169,588.35, 254,388.24 and 85,302.56 is: 127,956.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,588.35 : 254,388.24 = 85,302.56 : x
  2. Step 2: Convert to fraction form
    169,588.35/254,388.24 = 85,302.56/x
  3. Step 3: Cross multiply
    169,588.35x = 254,388.24 × 85,302.56
  4. Step 4: Simplify right side
    169,588.35x = 21,699,968,741.87
  5. Step 5: Solve for x
    x = 21,699,968,741.87/169,588.35
  6. Step 6: Final answer
    x = 127,956.72

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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.