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Finding the Fourth Proportional to 199,658.76, 275,536.01 and 113,630.72

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Solution

The fourth proportional to 199,658.76, 275,536.01 and 113,630.72 is: 156,814.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,658.76 : 275,536.01 = 113,630.72 : x
  2. Step 2: Convert to fraction form
    199,658.76/275,536.01 = 113,630.72/x
  3. Step 3: Cross multiply
    199,658.76x = 275,536.01 × 113,630.72
  4. Step 4: Simplify right side
    199,658.76x = 31,309,354,108.62
  5. Step 5: Solve for x
    x = 31,309,354,108.62/199,658.76
  6. Step 6: Final answer
    x = 156,814.33

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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.