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Finding the Fourth Proportional to 339,797.01, 509,756.98 and 140,006.26

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Solution

The fourth proportional to 339,797.01, 509,756.98 and 140,006.26 is: 210,034.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,797.01 : 509,756.98 = 140,006.26 : x
  2. Step 2: Convert to fraction form
    339,797.01/509,756.98 = 140,006.26/x
  3. Step 3: Cross multiply
    339,797.01x = 509,756.98 × 140,006.26
  4. Step 4: Simplify right side
    339,797.01x = 71,369,168,278.69
  5. Step 5: Solve for x
    x = 71,369,168,278.69/339,797.01
  6. Step 6: Final answer
    x = 210,034.72

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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.