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Finding the Fourth Proportional to 85,892.63, 118,531.82 and 48,166.88

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Solution

The fourth proportional to 85,892.63, 118,531.82 and 48,166.88 is: 66,470.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,892.63 : 118,531.82 = 48,166.88 : x
  2. Step 2: Convert to fraction form
    85,892.63/118,531.82 = 48,166.88/x
  3. Step 3: Cross multiply
    85,892.63x = 118,531.82 × 48,166.88
  4. Step 4: Simplify right side
    85,892.63x = 5,709,307,477.88
  5. Step 5: Solve for x
    x = 5,709,307,477.88/85,892.63
  6. Step 6: Final answer
    x = 66,470.29

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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.