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Finding the Fourth Proportional to 166,324, 229,529.28 and 90,874.12

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Solution

The fourth proportional to 166,324, 229,529.28 and 90,874.12 is: 125,407.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,324 : 229,529.28 = 90,874.12 : x
  2. Step 2: Convert to fraction form
    166,324/229,529.28 = 90,874.12/x
  3. Step 3: Cross multiply
    166,324x = 229,529.28 × 90,874.12
  4. Step 4: Simplify right side
    166,324x = 20,858,271,334.23
  5. Step 5: Solve for x
    x = 20,858,271,334.23/166,324
  6. Step 6: Final answer
    x = 125,407.47

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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.