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Finding the Fourth Proportional to 490,348.46, 735,565.01 and 135,362.54

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Solution

The fourth proportional to 490,348.46, 735,565.01 and 135,362.54 is: 203,055.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,348.46 : 735,565.01 = 135,362.54 : x
  2. Step 2: Convert to fraction form
    490,348.46/735,565.01 = 135,362.54/x
  3. Step 3: Cross multiply
    490,348.46x = 735,565.01 × 135,362.54
  4. Step 4: Simplify right side
    490,348.46x = 99,567,943,734.09
  5. Step 5: Solve for x
    x = 99,567,943,734.09/490,348.46
  6. Step 6: Final answer
    x = 203,055.49

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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.