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Finding the Fourth Proportional to 79,212.90, 118,794.24 and 25,892.81

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Solution

The fourth proportional to 79,212.90, 118,794.24 and 25,892.81 is: 38,831.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,212.90 : 118,794.24 = 25,892.81 : x
  2. Step 2: Convert to fraction form
    79,212.90/118,794.24 = 25,892.81/x
  3. Step 3: Cross multiply
    79,212.90x = 118,794.24 × 25,892.81
  4. Step 4: Simplify right side
    79,212.90x = 3,075,916,091.44
  5. Step 5: Solve for x
    x = 3,075,916,091.44/79,212.90
  6. Step 6: Final answer
    x = 38,831.00

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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.