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Finding the Fourth Proportional to 95,261.44, 142,788.48 and 81,368.32

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Solution

The fourth proportional to 95,261.44, 142,788.48 and 81,368.32 is: 121,963.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,261.44 : 142,788.48 = 81,368.32 : x
  2. Step 2: Convert to fraction form
    95,261.44/142,788.48 = 81,368.32/x
  3. Step 3: Cross multiply
    95,261.44x = 142,788.48 × 81,368.32
  4. Step 4: Simplify right side
    95,261.44x = 11,618,458,732.95
  5. Step 5: Solve for x
    x = 11,618,458,732.95/95,261.44
  6. Step 6: Final answer
    x = 121,963.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.