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Finding the Fourth Proportional to 176,693.76, 244,049.76 and 128,871.36

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Solution

The fourth proportional to 176,693.76, 244,049.76 and 128,871.36 is: 177,997.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,693.76 : 244,049.76 = 128,871.36 : x
  2. Step 2: Convert to fraction form
    176,693.76/244,049.76 = 128,871.36/x
  3. Step 3: Cross multiply
    176,693.76x = 244,049.76 × 128,871.36
  4. Step 4: Simplify right side
    176,693.76x = 31,451,024,478.87
  5. Step 5: Solve for x
    x = 31,451,024,478.87/176,693.76
  6. Step 6: Final answer
    x = 177,997.37

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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.