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Finding the Fourth Proportional to 229,587.50, 316,687.78 and 157,842.97

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Solution

The fourth proportional to 229,587.50, 316,687.78 and 157,842.97 is: 217,725.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,587.50 : 316,687.78 = 157,842.97 : x
  2. Step 2: Convert to fraction form
    229,587.50/316,687.78 = 157,842.97/x
  3. Step 3: Cross multiply
    229,587.50x = 316,687.78 × 157,842.97
  4. Step 4: Simplify right side
    229,587.50x = 49,986,939,757.91
  5. Step 5: Solve for x
    x = 49,986,939,757.91/229,587.50
  6. Step 6: Final answer
    x = 217,725.01

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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.