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Finding the Fourth Proportional to 108,769.50, 163,154.25 and 38,651.58

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Solution

The fourth proportional to 108,769.50, 163,154.25 and 38,651.58 is: 57,977.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,769.50 : 163,154.25 = 38,651.58 : x
  2. Step 2: Convert to fraction form
    108,769.50/163,154.25 = 38,651.58/x
  3. Step 3: Cross multiply
    108,769.50x = 163,154.25 × 38,651.58
  4. Step 4: Simplify right side
    108,769.50x = 6,306,169,546.22
  5. Step 5: Solve for x
    x = 6,306,169,546.22/108,769.50
  6. Step 6: Final answer
    x = 57,977.37

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1.5x scale

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.