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Finding the Fourth Proportional to 519,010.90, 778,540.65 and 164,052.70

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Solution

The fourth proportional to 519,010.90, 778,540.65 and 164,052.70 is: 246,086.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,010.90 : 778,540.65 = 164,052.70 : x
  2. Step 2: Convert to fraction form
    519,010.90/778,540.65 = 164,052.70/x
  3. Step 3: Cross multiply
    519,010.90x = 778,540.65 × 164,052.70
  4. Step 4: Simplify right side
    519,010.90x = 127,721,695,692.26
  5. Step 5: Solve for x
    x = 127,721,695,692.26/519,010.90
  6. Step 6: Final answer
    x = 246,086.73

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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.