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Finding the Fourth Proportional to 536,638.13, 804,984.77 and 137,282.37

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Solution

The fourth proportional to 536,638.13, 804,984.77 and 137,282.37 is: 205,930.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,638.13 : 804,984.77 = 137,282.37 : x
  2. Step 2: Convert to fraction form
    536,638.13/804,984.77 = 137,282.37/x
  3. Step 3: Cross multiply
    536,638.13x = 804,984.77 × 137,282.37
  4. Step 4: Simplify right side
    536,638.13x = 110,510,217,039.51
  5. Step 5: Solve for x
    x = 110,510,217,039.51/536,638.13
  6. Step 6: Final answer
    x = 205,930.61

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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.