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Finding the Fourth Proportional to 223,193.80, 308,060.58 and 127,755.64

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Solution

The fourth proportional to 223,193.80, 308,060.58 and 127,755.64 is: 176,333.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,193.80 : 308,060.58 = 127,755.64 : x
  2. Step 2: Convert to fraction form
    223,193.80/308,060.58 = 127,755.64/x
  3. Step 3: Cross multiply
    223,193.80x = 308,060.58 × 127,755.64
  4. Step 4: Simplify right side
    223,193.80x = 39,356,476,556.67
  5. Step 5: Solve for x
    x = 39,356,476,556.67/223,193.80
  6. Step 6: Final answer
    x = 176,333.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.