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Finding the Fourth Proportional to 176,381.73, 243,313.56 and 111,736.98

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Solution

The fourth proportional to 176,381.73, 243,313.56 and 111,736.98 is: 154,137.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,381.73 : 243,313.56 = 111,736.98 : x
  2. Step 2: Convert to fraction form
    176,381.73/243,313.56 = 111,736.98/x
  3. Step 3: Cross multiply
    176,381.73x = 243,313.56 × 111,736.98
  4. Step 4: Simplify right side
    176,381.73x = 27,187,122,387.45
  5. Step 5: Solve for x
    x = 27,187,122,387.45/176,381.73
  6. Step 6: Final answer
    x = 154,137.97

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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.