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Finding the Fourth Proportional to 108,769.63, 150,102.49 and 63,478.88

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Solution

The fourth proportional to 108,769.63, 150,102.49 and 63,478.88 is: 87,601.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,769.63 : 150,102.49 = 63,478.88 : x
  2. Step 2: Convert to fraction form
    108,769.63/150,102.49 = 63,478.88/x
  3. Step 3: Cross multiply
    108,769.63x = 150,102.49 × 63,478.88
  4. Step 4: Simplify right side
    108,769.63x = 9,528,337,950.41
  5. Step 5: Solve for x
    x = 9,528,337,950.41/108,769.63
  6. Step 6: Final answer
    x = 87,601.09

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1.5x scale

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.