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Finding the Fourth Proportional to 132,663.67, 198,997.03 and 56,751.88

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Solution

The fourth proportional to 132,663.67, 198,997.03 and 56,751.88 is: 85,128.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,663.67 : 198,997.03 = 56,751.88 : x
  2. Step 2: Convert to fraction form
    132,663.67/198,997.03 = 56,751.88/x
  3. Step 3: Cross multiply
    132,663.67x = 198,997.03 × 56,751.88
  4. Step 4: Simplify right side
    132,663.67x = 11,293,455,566.92
  5. Step 5: Solve for x
    x = 11,293,455,566.92/132,663.67
  6. Step 6: Final answer
    x = 85,128.48

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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.