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Finding the Fourth Proportional to 607,947.52, 911,921.30 and 164,715.52

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Solution

The fourth proportional to 607,947.52, 911,921.30 and 164,715.52 is: 247,073.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,947.52 : 911,921.30 = 164,715.52 : x
  2. Step 2: Convert to fraction form
    607,947.52/911,921.30 = 164,715.52/x
  3. Step 3: Cross multiply
    607,947.52x = 911,921.30 × 164,715.52
  4. Step 4: Simplify right side
    607,947.52x = 150,207,591,128.58
  5. Step 5: Solve for x
    x = 150,207,591,128.58/607,947.52
  6. Step 6: Final answer
    x = 247,073.29

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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.