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Finding the Fourth Proportional to 162,815.40, 244,223.10 and 136,571.40

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Solution

The fourth proportional to 162,815.40, 244,223.10 and 136,571.40 is: 204,857.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,815.40 : 244,223.10 = 136,571.40 : x
  2. Step 2: Convert to fraction form
    162,815.40/244,223.10 = 136,571.40/x
  3. Step 3: Cross multiply
    162,815.40x = 244,223.10 × 136,571.40
  4. Step 4: Simplify right side
    162,815.40x = 33,353,890,679.34
  5. Step 5: Solve for x
    x = 33,353,890,679.34/162,815.40
  6. Step 6: Final answer
    x = 204,857.10

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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.