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Finding the Fourth Proportional to 174,812.80, 262,046.40 and 69,491.20

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Solution

The fourth proportional to 174,812.80, 262,046.40 and 69,491.20 is: 104,168.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,812.80 : 262,046.40 = 69,491.20 : x
  2. Step 2: Convert to fraction form
    174,812.80/262,046.40 = 69,491.20/x
  3. Step 3: Cross multiply
    174,812.80x = 262,046.40 × 69,491.20
  4. Step 4: Simplify right side
    174,812.80x = 18,209,918,791.68
  5. Step 5: Solve for x
    x = 18,209,918,791.68/174,812.80
  6. Step 6: Final answer
    x = 104,168.11

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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.