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Finding the Fourth Proportional to 85,766, 118,357.08 and 48,040.16

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Solution

The fourth proportional to 85,766, 118,357.08 and 48,040.16 is: 66,295.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,766 : 118,357.08 = 48,040.16 : x
  2. Step 2: Convert to fraction form
    85,766/118,357.08 = 48,040.16/x
  3. Step 3: Cross multiply
    85,766x = 118,357.08 × 48,040.16
  4. Step 4: Simplify right side
    85,766x = 5,685,893,060.33
  5. Step 5: Solve for x
    x = 5,685,893,060.33/85,766
  6. Step 6: Final answer
    x = 66,295.42

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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.