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Finding the Fourth Proportional to 118,204.52, 163,122.05 and 64,489.51

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Solution

The fourth proportional to 118,204.52, 163,122.05 and 64,489.51 is: 88,995.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,204.52 : 163,122.05 = 64,489.51 : x
  2. Step 2: Convert to fraction form
    118,204.52/163,122.05 = 64,489.51/x
  3. Step 3: Cross multiply
    118,204.52x = 163,122.05 × 64,489.51
  4. Step 4: Simplify right side
    118,204.52x = 10,519,661,074.70
  5. Step 5: Solve for x
    x = 10,519,661,074.70/118,204.52
  6. Step 6: Final answer
    x = 88,995.42

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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.