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Finding the Fourth Proportional to 68,354.70, 102,564.72 and 37,189.92

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Solution

The fourth proportional to 68,354.70, 102,564.72 and 37,189.92 is: 55,802.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,354.70 : 102,564.72 = 37,189.92 : x
  2. Step 2: Convert to fraction form
    68,354.70/102,564.72 = 37,189.92/x
  3. Step 3: Cross multiply
    68,354.70x = 102,564.72 × 37,189.92
  4. Step 4: Simplify right side
    68,354.70x = 3,814,373,731.62
  5. Step 5: Solve for x
    x = 3,814,373,731.62/68,354.70
  6. Step 6: Final answer
    x = 55,802.65

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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.