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Finding the Fourth Proportional to 171,741.40, 257,562.87 and 57,876.81

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Solution

The fourth proportional to 171,741.40, 257,562.87 and 57,876.81 is: 86,798.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,741.40 : 257,562.87 = 57,876.81 : x
  2. Step 2: Convert to fraction form
    171,741.40/257,562.87 = 57,876.81/x
  3. Step 3: Cross multiply
    171,741.40x = 257,562.87 × 57,876.81
  4. Step 4: Simplify right side
    171,741.40x = 14,906,917,290.04
  5. Step 5: Solve for x
    x = 14,906,917,290.04/171,741.40
  6. Step 6: Final answer
    x = 86,798.62

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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.