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Finding the Fourth Proportional to 168,411.76, 232,447.23 and 111,061.39

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Solution

The fourth proportional to 168,411.76, 232,447.23 and 111,061.39 is: 153,290.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,411.76 : 232,447.23 = 111,061.39 : x
  2. Step 2: Convert to fraction form
    168,411.76/232,447.23 = 111,061.39/x
  3. Step 3: Cross multiply
    168,411.76x = 232,447.23 × 111,061.39
  4. Step 4: Simplify right side
    168,411.76x = 25,815,912,465.45
  5. Step 5: Solve for x
    x = 25,815,912,465.45/168,411.76
  6. Step 6: Final answer
    x = 153,290.44

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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.