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Finding the Fourth Proportional to 113,959.42, 170,959.79 and 57,063

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Solution

The fourth proportional to 113,959.42, 170,959.79 and 57,063 is: 85,604.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,959.42 : 170,959.79 = 57,063 : x
  2. Step 2: Convert to fraction form
    113,959.42/170,959.79 = 57,063/x
  3. Step 3: Cross multiply
    113,959.42x = 170,959.79 × 57,063
  4. Step 4: Simplify right side
    113,959.42x = 9,755,478,496.77
  5. Step 5: Solve for x
    x = 9,755,478,496.77/113,959.42
  6. Step 6: Final answer
    x = 85,604.85

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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.