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Finding the Fourth Proportional to 115,682.52, 173,537.64 and 40,787.22

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Solution

The fourth proportional to 115,682.52, 173,537.64 and 40,787.22 is: 61,185.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,682.52 : 173,537.64 = 40,787.22 : x
  2. Step 2: Convert to fraction form
    115,682.52/173,537.64 = 40,787.22/x
  3. Step 3: Cross multiply
    115,682.52x = 173,537.64 × 40,787.22
  4. Step 4: Simplify right side
    115,682.52x = 7,078,117,900.96
  5. Step 5: Solve for x
    x = 7,078,117,900.96/115,682.52
  6. Step 6: Final answer
    x = 61,185.72

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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.