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Finding the Fourth Proportional to 161,679.20, 223,122.84 and 93,696.30

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Solution

The fourth proportional to 161,679.20, 223,122.84 and 93,696.30 is: 129,304.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,679.20 : 223,122.84 = 93,696.30 : x
  2. Step 2: Convert to fraction form
    161,679.20/223,122.84 = 93,696.30/x
  3. Step 3: Cross multiply
    161,679.20x = 223,122.84 × 93,696.30
  4. Step 4: Simplify right side
    161,679.20x = 20,905,784,553.49
  5. Step 5: Solve for x
    x = 20,905,784,553.49/161,679.20
  6. Step 6: Final answer
    x = 129,304.11

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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.