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Finding the Fourth Proportional to 272,542.38, 375,786.63 and 186,542.88

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Solution

The fourth proportional to 272,542.38, 375,786.63 and 186,542.88 is: 257,208.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,542.38 : 375,786.63 = 186,542.88 : x
  2. Step 2: Convert to fraction form
    272,542.38/375,786.63 = 186,542.88/x
  3. Step 3: Cross multiply
    272,542.38x = 375,786.63 × 186,542.88
  4. Step 4: Simplify right side
    272,542.38x = 70,100,320,225.69
  5. Step 5: Solve for x
    x = 70,100,320,225.69/272,542.38
  6. Step 6: Final answer
    x = 257,208.88

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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.