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Finding the Fourth Proportional to 79,259.77, 118,903.02 and 26,656.75

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Solution

The fourth proportional to 79,259.77, 118,903.02 and 26,656.75 is: 39,989.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,259.77 : 118,903.02 = 26,656.75 : x
  2. Step 2: Convert to fraction form
    79,259.77/118,903.02 = 26,656.75/x
  3. Step 3: Cross multiply
    79,259.77x = 118,903.02 × 26,656.75
  4. Step 4: Simplify right side
    79,259.77x = 3,169,568,078.39
  5. Step 5: Solve for x
    x = 3,169,568,078.39/79,259.77
  6. Step 6: Final answer
    x = 39,989.62

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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.