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Finding the Fourth Proportional to 351,351.54, 527,050.80 and 123,620.04

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Solution

The fourth proportional to 351,351.54, 527,050.80 and 123,620.04 is: 185,438.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,351.54 : 527,050.80 = 123,620.04 : x
  2. Step 2: Convert to fraction form
    351,351.54/527,050.80 = 123,620.04/x
  3. Step 3: Cross multiply
    351,351.54x = 527,050.80 × 123,620.04
  4. Step 4: Simplify right side
    351,351.54x = 65,154,040,978.03
  5. Step 5: Solve for x
    x = 65,154,040,978.03/351,351.54
  6. Step 6: Final answer
    x = 185,438.32

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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.