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Finding the Fourth Proportional to 102,287.88, 141,200.96 and 68,773.32

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Solution

The fourth proportional to 102,287.88, 141,200.96 and 68,773.32 is: 94,936.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,287.88 : 141,200.96 = 68,773.32 : x
  2. Step 2: Convert to fraction form
    102,287.88/141,200.96 = 68,773.32/x
  3. Step 3: Cross multiply
    102,287.88x = 141,200.96 × 68,773.32
  4. Step 4: Simplify right side
    102,287.88x = 9,710,858,462.52
  5. Step 5: Solve for x
    x = 9,710,858,462.52/102,287.88
  6. Step 6: Final answer
    x = 94,936.55

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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.