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Finding the Fourth Proportional to 355,941.80, 533,912.70 and 106,591.40

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Solution

The fourth proportional to 355,941.80, 533,912.70 and 106,591.40 is: 159,887.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,941.80 : 533,912.70 = 106,591.40 : x
  2. Step 2: Convert to fraction form
    355,941.80/533,912.70 = 106,591.40/x
  3. Step 3: Cross multiply
    355,941.80x = 533,912.70 × 106,591.40
  4. Step 4: Simplify right side
    355,941.80x = 56,910,502,170.78
  5. Step 5: Solve for x
    x = 56,910,502,170.78/355,941.80
  6. Step 6: Final answer
    x = 159,887.10

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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.