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Finding the Fourth Proportional to 323,149.35, 484,945.47 and 112,787.28

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Solution

The fourth proportional to 323,149.35, 484,945.47 and 112,787.28 is: 169,258.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,149.35 : 484,945.47 = 112,787.28 : x
  2. Step 2: Convert to fraction form
    323,149.35/484,945.47 = 112,787.28/x
  3. Step 3: Cross multiply
    323,149.35x = 484,945.47 × 112,787.28
  4. Step 4: Simplify right side
    323,149.35x = 54,695,680,509.62
  5. Step 5: Solve for x
    x = 54,695,680,509.62/323,149.35
  6. Step 6: Final answer
    x = 169,258.21

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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.