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Finding the Fourth Proportional to 251,483.10, 347,049.14 and 136,764.20

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Solution

The fourth proportional to 251,483.10, 347,049.14 and 136,764.20 is: 188,735.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,483.10 : 347,049.14 = 136,764.20 : x
  2. Step 2: Convert to fraction form
    251,483.10/347,049.14 = 136,764.20/x
  3. Step 3: Cross multiply
    251,483.10x = 347,049.14 × 136,764.20
  4. Step 4: Simplify right side
    251,483.10x = 47,463,897,992.79
  5. Step 5: Solve for x
    x = 47,463,897,992.79/251,483.10
  6. Step 6: Final answer
    x = 188,735.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.