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Finding the Fourth Proportional to 265,366.28, 366,197 and 157,911.68

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Solution

The fourth proportional to 265,366.28, 366,197 and 157,911.68 is: 217,913.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,366.28 : 366,197 = 157,911.68 : x
  2. Step 2: Convert to fraction form
    265,366.28/366,197 = 157,911.68/x
  3. Step 3: Cross multiply
    265,366.28x = 366,197 × 157,911.68
  4. Step 4: Simplify right side
    265,366.28x = 57,826,783,480.96
  5. Step 5: Solve for x
    x = 57,826,783,480.96/265,366.28
  6. Step 6: Final answer
    x = 217,913.08

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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.