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Finding the Fourth Proportional to 188,341.62, 281,806.47 and 112,161.48

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Solution

The fourth proportional to 188,341.62, 281,806.47 and 112,161.48 is: 167,821.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,341.62 : 281,806.47 = 112,161.48 : x
  2. Step 2: Convert to fraction form
    188,341.62/281,806.47 = 112,161.48/x
  3. Step 3: Cross multiply
    188,341.62x = 281,806.47 × 112,161.48
  4. Step 4: Simplify right side
    188,341.62x = 31,607,830,748.78
  5. Step 5: Solve for x
    x = 31,607,830,748.78/188,341.62
  6. Step 6: Final answer
    x = 167,821.81

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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.