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Finding the Fourth Proportional to 207,170.96, 310,755.54 and 57,410.81

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Solution

The fourth proportional to 207,170.96, 310,755.54 and 57,410.81 is: 86,115.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,170.96 : 310,755.54 = 57,410.81 : x
  2. Step 2: Convert to fraction form
    207,170.96/310,755.54 = 57,410.81/x
  3. Step 3: Cross multiply
    207,170.96x = 310,755.54 × 57,410.81
  4. Step 4: Simplify right side
    207,170.96x = 17,840,728,040.28
  5. Step 5: Solve for x
    x = 17,840,728,040.28/207,170.96
  6. Step 6: Final answer
    x = 86,115.97

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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.