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Finding the Fourth Proportional to 171,237.52, 256,812.12 and 51,270.80

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Solution

The fourth proportional to 171,237.52, 256,812.12 and 51,270.80 is: 76,892.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,237.52 : 256,812.12 = 51,270.80 : x
  2. Step 2: Convert to fraction form
    171,237.52/256,812.12 = 51,270.80/x
  3. Step 3: Cross multiply
    171,237.52x = 256,812.12 × 51,270.80
  4. Step 4: Simplify right side
    171,237.52x = 13,166,962,842.10
  5. Step 5: Solve for x
    x = 13,166,962,842.10/171,237.52
  6. Step 6: Final answer
    x = 76,892.98

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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.