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Finding the Fourth Proportional to 493,650.32, 740,504.18 and 138,692.02

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Solution

The fourth proportional to 493,650.32, 740,504.18 and 138,692.02 is: 208,046.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,650.32 : 740,504.18 = 138,692.02 : x
  2. Step 2: Convert to fraction form
    493,650.32/740,504.18 = 138,692.02/x
  3. Step 3: Cross multiply
    493,650.32x = 740,504.18 × 138,692.02
  4. Step 4: Simplify right side
    493,650.32x = 102,702,020,542.64
  5. Step 5: Solve for x
    x = 102,702,020,542.64/493,650.32
  6. Step 6: Final answer
    x = 208,046.09

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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.