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Finding the Fourth Proportional to 108,694.92, 162,801.50 and 83,549.80

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Solution

The fourth proportional to 108,694.92, 162,801.50 and 83,549.80 is: 125,139.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,694.92 : 162,801.50 = 83,549.80 : x
  2. Step 2: Convert to fraction form
    108,694.92/162,801.50 = 83,549.80/x
  3. Step 3: Cross multiply
    108,694.92x = 162,801.50 × 83,549.80
  4. Step 4: Simplify right side
    108,694.92x = 13,602,032,764.70
  5. Step 5: Solve for x
    x = 13,602,032,764.70/108,694.92
  6. Step 6: Final answer
    x = 125,139.54

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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.