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Finding the Fourth Proportional to 439,343.01, 659,014.61 and 123,758.91

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Solution

The fourth proportional to 439,343.01, 659,014.61 and 123,758.91 is: 185,638.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,343.01 : 659,014.61 = 123,758.91 : x
  2. Step 2: Convert to fraction form
    439,343.01/659,014.61 = 123,758.91/x
  3. Step 3: Cross multiply
    439,343.01x = 659,014.61 × 123,758.91
  4. Step 4: Simplify right side
    439,343.01x = 81,558,929,188.88
  5. Step 5: Solve for x
    x = 81,558,929,188.88/439,343.01
  6. Step 6: Final answer
    x = 185,638.39

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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.