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Finding the Fourth Proportional to 223,900.76, 308,959.52 and 127,073.82

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Solution

The fourth proportional to 223,900.76, 308,959.52 and 127,073.82 is: 175,348.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,900.76 : 308,959.52 = 127,073.82 : x
  2. Step 2: Convert to fraction form
    223,900.76/308,959.52 = 127,073.82/x
  3. Step 3: Cross multiply
    223,900.76x = 308,959.52 × 127,073.82
  4. Step 4: Simplify right side
    223,900.76x = 39,260,666,431.77
  5. Step 5: Solve for x
    x = 39,260,666,431.77/223,900.76
  6. Step 6: Final answer
    x = 175,348.52

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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.