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Finding the Fourth Proportional to 539,963.01, 809,936.01 and 140,594.94

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Solution

The fourth proportional to 539,963.01, 809,936.01 and 140,594.94 is: 210,890.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,963.01 : 809,936.01 = 140,594.94 : x
  2. Step 2: Convert to fraction form
    539,963.01/809,936.01 = 140,594.94/x
  3. Step 3: Cross multiply
    539,963.01x = 809,936.01 × 140,594.94
  4. Step 4: Simplify right side
    539,963.01x = 113,872,904,729.79
  5. Step 5: Solve for x
    x = 113,872,904,729.79/539,963.01
  6. Step 6: Final answer
    x = 210,890.20

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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.