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Finding the Fourth Proportional to 262,114.20, 393,171.30 and 242,868.60

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Solution

The fourth proportional to 262,114.20, 393,171.30 and 242,868.60 is: 364,302.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,114.20 : 393,171.30 = 242,868.60 : x
  2. Step 2: Convert to fraction form
    262,114.20/393,171.30 = 242,868.60/x
  3. Step 3: Cross multiply
    262,114.20x = 393,171.30 × 242,868.60
  4. Step 4: Simplify right side
    262,114.20x = 95,488,963,191.18
  5. Step 5: Solve for x
    x = 95,488,963,191.18/262,114.20
  6. Step 6: Final answer
    x = 364,302.90

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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.