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Finding the Fourth Proportional to 229,446.60, 316,640.34 and 127,481.40

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Solution

The fourth proportional to 229,446.60, 316,640.34 and 127,481.40 is: 175,926.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,446.60 : 316,640.34 = 127,481.40 : x
  2. Step 2: Convert to fraction form
    229,446.60/316,640.34 = 127,481.40/x
  3. Step 3: Cross multiply
    229,446.60x = 316,640.34 × 127,481.40
  4. Step 4: Simplify right side
    229,446.60x = 40,365,753,839.68
  5. Step 5: Solve for x
    x = 40,365,753,839.68/229,446.60
  6. Step 6: Final answer
    x = 175,926.57

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1.5x scale

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.