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Finding the Fourth Proportional to 113,737.89, 170,468.48 and 80,467.55

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Solution

The fourth proportional to 113,737.89, 170,468.48 and 80,467.55 is: 120,603.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,737.89 : 170,468.48 = 80,467.55 : x
  2. Step 2: Convert to fraction form
    113,737.89/170,468.48 = 80,467.55/x
  3. Step 3: Cross multiply
    113,737.89x = 170,468.48 × 80,467.55
  4. Step 4: Simplify right side
    113,737.89x = 13,717,179,683.14
  5. Step 5: Solve for x
    x = 13,717,179,683.14/113,737.89
  6. Step 6: Final answer
    x = 120,603.43

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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.