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Finding the Fourth Proportional to 222,821.44, 307,494.09 and 127,327.91

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Solution

The fourth proportional to 222,821.44, 307,494.09 and 127,327.91 is: 175,712.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,821.44 : 307,494.09 = 127,327.91 : x
  2. Step 2: Convert to fraction form
    222,821.44/307,494.09 = 127,327.91/x
  3. Step 3: Cross multiply
    222,821.44x = 307,494.09 × 127,327.91
  4. Step 4: Simplify right side
    222,821.44x = 39,152,578,279.58
  5. Step 5: Solve for x
    x = 39,152,578,279.58/222,821.44
  6. Step 6: Final answer
    x = 175,712.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.