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Finding the Fourth Proportional to 85,090.84, 127,619.79 and 32,487.82

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Solution

The fourth proportional to 85,090.84, 127,619.79 and 32,487.82 is: 48,725.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,090.84 : 127,619.79 = 32,487.82 : x
  2. Step 2: Convert to fraction form
    85,090.84/127,619.79 = 32,487.82/x
  3. Step 3: Cross multiply
    85,090.84x = 127,619.79 × 32,487.82
  4. Step 4: Simplify right side
    85,090.84x = 4,146,088,765.96
  5. Step 5: Solve for x
    x = 4,146,088,765.96/85,090.84
  6. Step 6: Final answer
    x = 48,725.44

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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.