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Finding the Fourth Proportional to 94,205.97, 129,996.63 and 53,910.50

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Solution

The fourth proportional to 94,205.97, 129,996.63 and 53,910.50 is: 74,392.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,205.97 : 129,996.63 = 53,910.50 : x
  2. Step 2: Convert to fraction form
    94,205.97/129,996.63 = 53,910.50/x
  3. Step 3: Cross multiply
    94,205.97x = 129,996.63 × 53,910.50
  4. Step 4: Simplify right side
    94,205.97x = 7,008,182,671.63
  5. Step 5: Solve for x
    x = 7,008,182,671.63/94,205.97
  6. Step 6: Final answer
    x = 74,392.13

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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.