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Finding the Fourth Proportional to 223,430.75, 335,040.54 and 81,176.84

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Solution

The fourth proportional to 223,430.75, 335,040.54 and 81,176.84 is: 121,726.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,430.75 : 335,040.54 = 81,176.84 : x
  2. Step 2: Convert to fraction form
    223,430.75/335,040.54 = 81,176.84/x
  3. Step 3: Cross multiply
    223,430.75x = 335,040.54 × 81,176.84
  4. Step 4: Simplify right side
    223,430.75x = 27,197,532,309.09
  5. Step 5: Solve for x
    x = 27,197,532,309.09/223,430.75
  6. Step 6: Final answer
    x = 121,726.90

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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.