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Finding the Fourth Proportional to 347,906.70, 521,695.57 and 134,774.44

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Solution

The fourth proportional to 347,906.70, 521,695.57 and 134,774.44 is: 202,097.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,906.70 : 521,695.57 = 134,774.44 : x
  2. Step 2: Convert to fraction form
    347,906.70/521,695.57 = 134,774.44/x
  3. Step 3: Cross multiply
    347,906.70x = 521,695.57 × 134,774.44
  4. Step 4: Simplify right side
    347,906.70x = 70,311,225,014.88
  5. Step 5: Solve for x
    x = 70,311,225,014.88/347,906.70
  6. Step 6: Final answer
    x = 202,097.93

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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.