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Finding the Fourth Proportional to 223,385.80, 335,138.10 and 96,971.80

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Solution

The fourth proportional to 223,385.80, 335,138.10 and 96,971.80 is: 145,483.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,385.80 : 335,138.10 = 96,971.80 : x
  2. Step 2: Convert to fraction form
    223,385.80/335,138.10 = 96,971.80/x
  3. Step 3: Cross multiply
    223,385.80x = 335,138.10 × 96,971.80
  4. Step 4: Simplify right side
    223,385.80x = 32,498,944,805.58
  5. Step 5: Solve for x
    x = 32,498,944,805.58/223,385.80
  6. Step 6: Final answer
    x = 145,483.49

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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.