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Finding the Fourth Proportional to 176,012.75, 242,939.61 and 104,434.31

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Solution

The fourth proportional to 176,012.75, 242,939.61 and 104,434.31 is: 144,144.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,012.75 : 242,939.61 = 104,434.31 : x
  2. Step 2: Convert to fraction form
    176,012.75/242,939.61 = 104,434.31/x
  3. Step 3: Cross multiply
    176,012.75x = 242,939.61 × 104,434.31
  4. Step 4: Simplify right side
    176,012.75x = 25,371,230,542.02
  5. Step 5: Solve for x
    x = 25,371,230,542.02/176,012.75
  6. Step 6: Final answer
    x = 144,144.28

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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.