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Finding the Fourth Proportional to 117,013.97, 175,410.24 and 72,062.97

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Solution

The fourth proportional to 117,013.97, 175,410.24 and 72,062.97 is: 108,026.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,013.97 : 175,410.24 = 72,062.97 : x
  2. Step 2: Convert to fraction form
    117,013.97/175,410.24 = 72,062.97/x
  3. Step 3: Cross multiply
    117,013.97x = 175,410.24 × 72,062.97
  4. Step 4: Simplify right side
    117,013.97x = 12,640,582,862.81
  5. Step 5: Solve for x
    x = 12,640,582,862.81/117,013.97
  6. Step 6: Final answer
    x = 108,026.28

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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.