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Finding the Fourth Proportional to 207,128.06, 285,912.99 and 181,903.10

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Solution

The fourth proportional to 207,128.06, 285,912.99 and 181,903.10 is: 251,093.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,128.06 : 285,912.99 = 181,903.10 : x
  2. Step 2: Convert to fraction form
    207,128.06/285,912.99 = 181,903.10/x
  3. Step 3: Cross multiply
    207,128.06x = 285,912.99 × 181,903.10
  4. Step 4: Simplify right side
    207,128.06x = 52,008,459,211.27
  5. Step 5: Solve for x
    x = 52,008,459,211.27/207,128.06
  6. Step 6: Final answer
    x = 251,093.26

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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.