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Finding the Fourth Proportional to 351,900.63, 527,739.47 and 127,231.34

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Solution

The fourth proportional to 351,900.63, 527,739.47 and 127,231.34 is: 190,806.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,900.63 : 527,739.47 = 127,231.34 : x
  2. Step 2: Convert to fraction form
    351,900.63/527,739.47 = 127,231.34/x
  3. Step 3: Cross multiply
    351,900.63x = 527,739.47 × 127,231.34
  4. Step 4: Simplify right side
    351,900.63x = 67,144,996,664.14
  5. Step 5: Solve for x
    x = 67,144,996,664.14/351,900.63
  6. Step 6: Final answer
    x = 190,806.70

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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.