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Finding the Fourth Proportional to 490,019.22, 735,053.94 and 135,025.38

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Solution

The fourth proportional to 490,019.22, 735,053.94 and 135,025.38 is: 202,544.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,019.22 : 735,053.94 = 135,025.38 : x
  2. Step 2: Convert to fraction form
    490,019.22/735,053.94 = 135,025.38/x
  3. Step 3: Cross multiply
    490,019.22x = 735,053.94 × 135,025.38
  4. Step 4: Simplify right side
    490,019.22x = 99,250,937,569.00
  5. Step 5: Solve for x
    x = 99,250,937,569.00/490,019.22
  6. Step 6: Final answer
    x = 202,544.99

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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.