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Finding the Fourth Proportional to 61,663.67, 85,086.74 and 36,160.41

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Solution

The fourth proportional to 61,663.67, 85,086.74 and 36,160.41 is: 49,896.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,663.67 : 85,086.74 = 36,160.41 : x
  2. Step 2: Convert to fraction form
    61,663.67/85,086.74 = 36,160.41/x
  3. Step 3: Cross multiply
    61,663.67x = 85,086.74 × 36,160.41
  4. Step 4: Simplify right side
    61,663.67x = 3,076,771,223.16
  5. Step 5: Solve for x
    x = 3,076,771,223.16/61,663.67
  6. Step 6: Final answer
    x = 49,896.02

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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.