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Finding the Fourth Proportional to 229,659.56, 316,944.58 and 127,685.88

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Solution

The fourth proportional to 229,659.56, 316,944.58 and 127,685.88 is: 176,214.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,659.56 : 316,944.58 = 127,685.88 : x
  2. Step 2: Convert to fraction form
    229,659.56/316,944.58 = 127,685.88/x
  3. Step 3: Cross multiply
    229,659.56x = 316,944.58 × 127,685.88
  4. Step 4: Simplify right side
    229,659.56x = 40,469,347,608.53
  5. Step 5: Solve for x
    x = 40,469,347,608.53/229,659.56
  6. Step 6: Final answer
    x = 176,214.51

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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.