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Finding the Fourth Proportional to 223,976.60, 309,087.72 and 123,374.60

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Solution

The fourth proportional to 223,976.60, 309,087.72 and 123,374.60 is: 170,256.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,976.60 : 309,087.72 = 123,374.60 : x
  2. Step 2: Convert to fraction form
    223,976.60/309,087.72 = 123,374.60/x
  3. Step 3: Cross multiply
    223,976.60x = 309,087.72 × 123,374.60
  4. Step 4: Simplify right side
    223,976.60x = 38,133,573,819.91
  5. Step 5: Solve for x
    x = 38,133,573,819.91/223,976.60
  6. Step 6: Final answer
    x = 170,256.95

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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.