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Finding the Fourth Proportional to 171,687.60, 256,802.40 and 154,045.80

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Solution

The fourth proportional to 171,687.60, 256,802.40 and 154,045.80 is: 230,414.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,687.60 : 256,802.40 = 154,045.80 : x
  2. Step 2: Convert to fraction form
    171,687.60/256,802.40 = 154,045.80/x
  3. Step 3: Cross multiply
    171,687.60x = 256,802.40 × 154,045.80
  4. Step 4: Simplify right side
    171,687.60x = 39,559,331,149.92
  5. Step 5: Solve for x
    x = 39,559,331,149.92/171,687.60
  6. Step 6: Final answer
    x = 230,414.61

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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.