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Finding the Fourth Proportional to 416,622.68, 624,966.43 and 136,168.28

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Solution

The fourth proportional to 416,622.68, 624,966.43 and 136,168.28 is: 204,263.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,622.68 : 624,966.43 = 136,168.28 : x
  2. Step 2: Convert to fraction form
    416,622.68/624,966.43 = 136,168.28/x
  3. Step 3: Cross multiply
    416,622.68x = 624,966.43 × 136,168.28
  4. Step 4: Simplify right side
    416,622.68x = 85,100,603,830.84
  5. Step 5: Solve for x
    x = 85,100,603,830.84/416,622.68
  6. Step 6: Final answer
    x = 204,263.01

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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.