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Finding the Fourth Proportional to 127,754.24, 175,024.15 and 122,965.72

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Solution

The fourth proportional to 127,754.24, 175,024.15 and 122,965.72 is: 168,463.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,754.24 : 175,024.15 = 122,965.72 : x
  2. Step 2: Convert to fraction form
    127,754.24/175,024.15 = 122,965.72/x
  3. Step 3: Cross multiply
    127,754.24x = 175,024.15 × 122,965.72
  4. Step 4: Simplify right side
    127,754.24x = 21,521,970,622.14
  5. Step 5: Solve for x
    x = 21,521,970,622.14/127,754.24
  6. Step 6: Final answer
    x = 168,463.85

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.