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Finding the Fourth Proportional to 61,755.93, 85,223.70 and 33,461.60

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Solution

The fourth proportional to 61,755.93, 85,223.70 and 33,461.60 is: 46,177.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,755.93 : 85,223.70 = 33,461.60 : x
  2. Step 2: Convert to fraction form
    61,755.93/85,223.70 = 33,461.60/x
  3. Step 3: Cross multiply
    61,755.93x = 85,223.70 × 33,461.60
  4. Step 4: Simplify right side
    61,755.93x = 2,851,720,933.80
  5. Step 5: Solve for x
    x = 2,851,720,933.80/61,755.93
  6. Step 6: Final answer
    x = 46,177.28

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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.