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Finding the Fourth Proportional to 149,722.20, 224,583.30 and 143,817.30

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Solution

The fourth proportional to 149,722.20, 224,583.30 and 143,817.30 is: 215,725.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,722.20 : 224,583.30 = 143,817.30 : x
  2. Step 2: Convert to fraction form
    149,722.20/224,583.30 = 143,817.30/x
  3. Step 3: Cross multiply
    149,722.20x = 224,583.30 × 143,817.30
  4. Step 4: Simplify right side
    149,722.20x = 32,298,963,831.09
  5. Step 5: Solve for x
    x = 32,298,963,831.09/149,722.20
  6. Step 6: Final answer
    x = 215,725.95

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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.