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Finding the Fourth Proportional to 85,791.04, 118,394.88 and 48,064

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Solution

The fourth proportional to 85,791.04, 118,394.88 and 48,064 is: 66,330.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,791.04 : 118,394.88 = 48,064 : x
  2. Step 2: Convert to fraction form
    85,791.04/118,394.88 = 48,064/x
  3. Step 3: Cross multiply
    85,791.04x = 118,394.88 × 48,064
  4. Step 4: Simplify right side
    85,791.04x = 5,690,531,512.32
  5. Step 5: Solve for x
    x = 5,690,531,512.32/85,791.04
  6. Step 6: Final answer
    x = 66,330.14

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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.