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Finding the Fourth Proportional to 229,300.73, 316,402.10 and 127,327.43

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Solution

The fourth proportional to 229,300.73, 316,402.10 and 127,327.43 is: 175,693.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,300.73 : 316,402.10 = 127,327.43 : x
  2. Step 2: Convert to fraction form
    229,300.73/316,402.10 = 127,327.43/x
  3. Step 3: Cross multiply
    229,300.73x = 316,402.10 × 127,327.43
  4. Step 4: Simplify right side
    229,300.73x = 40,286,664,020.96
  5. Step 5: Solve for x
    x = 40,286,664,020.96/229,300.73
  6. Step 6: Final answer
    x = 175,693.57

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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.