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Finding the Fourth Proportional to 175,262.60, 262,975.64 and 68,618.90

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Solution

The fourth proportional to 175,262.60, 262,975.64 and 68,618.90 is: 102,960.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,262.60 : 262,975.64 = 68,618.90 : x
  2. Step 2: Convert to fraction form
    175,262.60/262,975.64 = 68,618.90/x
  3. Step 3: Cross multiply
    175,262.60x = 262,975.64 × 68,618.90
  4. Step 4: Simplify right side
    175,262.60x = 18,045,098,000.27
  5. Step 5: Solve for x
    x = 18,045,098,000.27/175,262.60
  6. Step 6: Final answer
    x = 102,960.34

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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.