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Finding the Fourth Proportional to 167,906.40, 235,380 and 167,906.40

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Solution

The fourth proportional to 167,906.40, 235,380 and 167,906.40 is: 235,380

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,906.40 : 235,380 = 167,906.40 : x
  2. Step 2: Convert to fraction form
    167,906.40/235,380 = 167,906.40/x
  3. Step 3: Cross multiply
    167,906.40x = 235,380 × 167,906.40
  4. Step 4: Simplify right side
    167,906.40x = 39,521,808,432
  5. Step 5: Solve for x
    x = 39,521,808,432/167,906.40
  6. Step 6: Final answer
    x = 235,380

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.