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Finding the Fourth Proportional to 162,794.70, 244,082.70 and 86,905.80

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Solution

The fourth proportional to 162,794.70, 244,082.70 and 86,905.80 is: 130,300.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,794.70 : 244,082.70 = 86,905.80 : x
  2. Step 2: Convert to fraction form
    162,794.70/244,082.70 = 86,905.80/x
  3. Step 3: Cross multiply
    162,794.70x = 244,082.70 × 86,905.80
  4. Step 4: Simplify right side
    162,794.70x = 21,212,202,309.66
  5. Step 5: Solve for x
    x = 21,212,202,309.66/162,794.70
  6. Step 6: Final answer
    x = 130,300.32

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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.