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Finding the Fourth Proportional to 79,362.27, 118,998.30 and 61,344.12

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Solution

The fourth proportional to 79,362.27, 118,998.30 and 61,344.12 is: 91,981.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,362.27 : 118,998.30 = 61,344.12 : x
  2. Step 2: Convert to fraction form
    79,362.27/118,998.30 = 61,344.12/x
  3. Step 3: Cross multiply
    79,362.27x = 118,998.30 × 61,344.12
  4. Step 4: Simplify right side
    79,362.27x = 7,299,845,995.00
  5. Step 5: Solve for x
    x = 7,299,845,995.00/79,362.27
  6. Step 6: Final answer
    x = 91,981.32

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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.