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Finding the Fourth Proportional to 116,939.84, 175,366.22 and 42,039.54

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Solution

The fourth proportional to 116,939.84, 175,366.22 and 42,039.54 is: 63,043.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,939.84 : 175,366.22 = 42,039.54 : x
  2. Step 2: Convert to fraction form
    116,939.84/175,366.22 = 42,039.54/x
  3. Step 3: Cross multiply
    116,939.84x = 175,366.22 × 42,039.54
  4. Step 4: Simplify right side
    116,939.84x = 7,372,315,010.14
  5. Step 5: Solve for x
    x = 7,372,315,010.14/116,939.84
  6. Step 6: Final answer
    x = 63,043.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.