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Finding the Fourth Proportional to 448,692.20, 672,892.62 and 149,092.32

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Solution

The fourth proportional to 448,692.20, 672,892.62 and 149,092.32 is: 223,590.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,692.20 : 672,892.62 = 149,092.32 : x
  2. Step 2: Convert to fraction form
    448,692.20/672,892.62 = 149,092.32/x
  3. Step 3: Cross multiply
    448,692.20x = 672,892.62 × 149,092.32
  4. Step 4: Simplify right side
    448,692.20x = 100,323,121,826.68
  5. Step 5: Solve for x
    x = 100,323,121,826.68/448,692.20
  6. Step 6: Final answer
    x = 223,590.07

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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.