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Finding the Fourth Proportional to 141,133.49, 194,759.87 and 76,599.68

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Solution

The fourth proportional to 141,133.49, 194,759.87 and 76,599.68 is: 105,705.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,133.49 : 194,759.87 = 76,599.68 : x
  2. Step 2: Convert to fraction form
    141,133.49/194,759.87 = 76,599.68/x
  3. Step 3: Cross multiply
    141,133.49x = 194,759.87 × 76,599.68
  4. Step 4: Simplify right side
    141,133.49x = 14,918,542,577.48
  5. Step 5: Solve for x
    x = 14,918,542,577.48/141,133.49
  6. Step 6: Final answer
    x = 105,705.19

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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.