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Finding the Fourth Proportional to 223,409.46, 335,008.86 and 81,154.44

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Solution

The fourth proportional to 223,409.46, 335,008.86 and 81,154.44 is: 121,693.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,409.46 : 335,008.86 = 81,154.44 : x
  2. Step 2: Convert to fraction form
    223,409.46/335,008.86 = 81,154.44/x
  3. Step 3: Cross multiply
    223,409.46x = 335,008.86 × 81,154.44
  4. Step 4: Simplify right side
    223,409.46x = 27,187,456,428.34
  5. Step 5: Solve for x
    x = 27,187,456,428.34/223,409.46
  6. Step 6: Final answer
    x = 121,693.40

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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.