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Finding the Fourth Proportional to 167,490.96, 251,095.17 and 72,649.71

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Solution

The fourth proportional to 167,490.96, 251,095.17 and 72,649.71 is: 108,913.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,490.96 : 251,095.17 = 72,649.71 : x
  2. Step 2: Convert to fraction form
    167,490.96/251,095.17 = 72,649.71/x
  3. Step 3: Cross multiply
    167,490.96x = 251,095.17 × 72,649.71
  4. Step 4: Simplify right side
    167,490.96x = 18,241,990,942.36
  5. Step 5: Solve for x
    x = 18,241,990,942.36/167,490.96
  6. Step 6: Final answer
    x = 108,913.28

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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.