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Finding the Fourth Proportional to 127,193.31, 175,518.81 and 73,469.61

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Solution

The fourth proportional to 127,193.31, 175,518.81 and 73,469.61 is: 101,383.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,193.31 : 175,518.81 = 73,469.61 : x
  2. Step 2: Convert to fraction form
    127,193.31/175,518.81 = 73,469.61/x
  3. Step 3: Cross multiply
    127,193.31x = 175,518.81 × 73,469.61
  4. Step 4: Simplify right side
    127,193.31x = 12,895,298,518.36
  5. Step 5: Solve for x
    x = 12,895,298,518.36/127,193.31
  6. Step 6: Final answer
    x = 101,383.47

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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.