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Finding the Fourth Proportional to 223,456.40, 335,087.40 and 73,638.80

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Solution

The fourth proportional to 223,456.40, 335,087.40 and 73,638.80 is: 110,426.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,456.40 : 335,087.40 = 73,638.80 : x
  2. Step 2: Convert to fraction form
    223,456.40/335,087.40 = 73,638.80/x
  3. Step 3: Cross multiply
    223,456.40x = 335,087.40 × 73,638.80
  4. Step 4: Simplify right side
    223,456.40x = 24,675,434,031.12
  5. Step 5: Solve for x
    x = 24,675,434,031.12/223,456.40
  6. Step 6: Final answer
    x = 110,426.17

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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.