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Finding the Fourth Proportional to 351,902.70, 527,742.56 and 127,233.41

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Solution

The fourth proportional to 351,902.70, 527,742.56 and 127,233.41 is: 190,809.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,902.70 : 527,742.56 = 127,233.41 : x
  2. Step 2: Convert to fraction form
    351,902.70/527,742.56 = 127,233.41/x
  3. Step 3: Cross multiply
    351,902.70x = 527,742.56 × 127,233.41
  4. Step 4: Simplify right side
    351,902.70x = 67,146,482,236.05
  5. Step 5: Solve for x
    x = 67,146,482,236.05/351,902.70
  6. Step 6: Final answer
    x = 190,809.80

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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.