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Finding the Fourth Proportional to 171,699.30, 237,006.39 and 117,212.49

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Solution

The fourth proportional to 171,699.30, 237,006.39 and 117,212.49 is: 161,795.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,699.30 : 237,006.39 = 117,212.49 : x
  2. Step 2: Convert to fraction form
    171,699.30/237,006.39 = 117,212.49/x
  3. Step 3: Cross multiply
    171,699.30x = 237,006.39 × 117,212.49
  4. Step 4: Simplify right side
    171,699.30x = 27,780,109,117.81
  5. Step 5: Solve for x
    x = 27,780,109,117.81/171,699.30
  6. Step 6: Final answer
    x = 161,795.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.