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Finding the Fourth Proportional to 490,727.75, 736,126.62 and 130,896.59

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Solution

The fourth proportional to 490,727.75, 736,126.62 and 130,896.59 is: 196,354.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,727.75 : 736,126.62 = 130,896.59 : x
  2. Step 2: Convert to fraction form
    490,727.75/736,126.62 = 130,896.59/x
  3. Step 3: Cross multiply
    490,727.75x = 736,126.62 × 130,896.59
  4. Step 4: Simplify right side
    490,727.75x = 96,356,464,366.23
  5. Step 5: Solve for x
    x = 96,356,464,366.23/490,727.75
  6. Step 6: Final answer
    x = 196,354.22

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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.