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Finding the Fourth Proportional to 223,409.82, 335,009.44 and 81,154.82

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Solution

The fourth proportional to 223,409.82, 335,009.44 and 81,154.82 is: 121,693.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,409.82 : 335,009.44 = 81,154.82 : x
  2. Step 2: Convert to fraction form
    223,409.82/335,009.44 = 81,154.82/x
  3. Step 3: Cross multiply
    223,409.82x = 335,009.44 × 81,154.82
  4. Step 4: Simplify right side
    223,409.82x = 27,187,630,801.50
  5. Step 5: Solve for x
    x = 27,187,630,801.50/223,409.82
  6. Step 6: Final answer
    x = 121,693.98

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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.