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Finding the Fourth Proportional to 61,632.59, 85,055.40 and 36,135.41

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Solution

The fourth proportional to 61,632.59, 85,055.40 and 36,135.41 is: 49,868.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,632.59 : 85,055.40 = 36,135.41 : x
  2. Step 2: Convert to fraction form
    61,632.59/85,055.40 = 36,135.41/x
  3. Step 3: Cross multiply
    61,632.59x = 85,055.40 × 36,135.41
  4. Step 4: Simplify right side
    61,632.59x = 3,073,511,326.44
  5. Step 5: Solve for x
    x = 3,073,511,326.44/61,632.59
  6. Step 6: Final answer
    x = 49,868.29

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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.