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Finding the Fourth Proportional to 171,478.69, 236,561.82 and 111,069.51

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Solution

The fourth proportional to 171,478.69, 236,561.82 and 111,069.51 is: 153,224.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,478.69 : 236,561.82 = 111,069.51 : x
  2. Step 2: Convert to fraction form
    171,478.69/236,561.82 = 111,069.51/x
  3. Step 3: Cross multiply
    171,478.69x = 236,561.82 × 111,069.51
  4. Step 4: Simplify right side
    171,478.69x = 26,274,805,432.11
  5. Step 5: Solve for x
    x = 26,274,805,432.11/171,478.69
  6. Step 6: Final answer
    x = 153,224.90

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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.