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Finding the Fourth Proportional to 172,753.26, 259,007.22 and 66,047.28

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Solution

The fourth proportional to 172,753.26, 259,007.22 and 66,047.28 is: 99,024.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,753.26 : 259,007.22 = 66,047.28 : x
  2. Step 2: Convert to fraction form
    172,753.26/259,007.22 = 66,047.28/x
  3. Step 3: Cross multiply
    172,753.26x = 259,007.22 × 66,047.28
  4. Step 4: Simplify right side
    172,753.26x = 17,106,722,381.36
  5. Step 5: Solve for x
    x = 17,106,722,381.36/172,753.26
  6. Step 6: Final answer
    x = 99,024.02

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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.