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Finding the Fourth Proportional to 171,371.67, 256,986.54 and 64,737.43

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Solution

The fourth proportional to 171,371.67, 256,986.54 and 64,737.43 is: 97,079.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,371.67 : 256,986.54 = 64,737.43 : x
  2. Step 2: Convert to fraction form
    171,371.67/256,986.54 = 64,737.43/x
  3. Step 3: Cross multiply
    171,371.67x = 256,986.54 × 64,737.43
  4. Step 4: Simplify right side
    171,371.67x = 16,636,648,144.19
  5. Step 5: Solve for x
    x = 16,636,648,144.19/171,371.67
  6. Step 6: Final answer
    x = 97,079.34

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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.