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Finding the Fourth Proportional to 118,251.54, 163,189.20 and 64,537.02

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Solution

The fourth proportional to 118,251.54, 163,189.20 and 64,537.02 is: 89,062.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,251.54 : 163,189.20 = 64,537.02 : x
  2. Step 2: Convert to fraction form
    118,251.54/163,189.20 = 64,537.02/x
  3. Step 3: Cross multiply
    118,251.54x = 163,189.20 × 64,537.02
  4. Step 4: Simplify right side
    118,251.54x = 10,531,744,664.18
  5. Step 5: Solve for x
    x = 10,531,744,664.18/118,251.54
  6. Step 6: Final answer
    x = 89,062.22

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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.