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Finding the Fourth Proportional to 86,072.88, 118,791.71 and 48,347.12

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Solution

The fourth proportional to 86,072.88, 118,791.71 and 48,347.12 is: 66,725.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,072.88 : 118,791.71 = 48,347.12 : x
  2. Step 2: Convert to fraction form
    86,072.88/118,791.71 = 48,347.12/x
  3. Step 3: Cross multiply
    86,072.88x = 118,791.71 × 48,347.12
  4. Step 4: Simplify right side
    86,072.88x = 5,743,237,058.38
  5. Step 5: Solve for x
    x = 5,743,237,058.38/86,072.88
  6. Step 6: Final answer
    x = 66,725.28

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1.5x scale

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.