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Finding the Fourth Proportional to 53,004.80, 73,132.80 and 34,169.60

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Solution

The fourth proportional to 53,004.80, 73,132.80 and 34,169.60 is: 47,145.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,004.80 : 73,132.80 = 34,169.60 : x
  2. Step 2: Convert to fraction form
    53,004.80/73,132.80 = 34,169.60/x
  3. Step 3: Cross multiply
    53,004.80x = 73,132.80 × 34,169.60
  4. Step 4: Simplify right side
    53,004.80x = 2,498,918,522.88
  5. Step 5: Solve for x
    x = 2,498,918,522.88/53,004.80
  6. Step 6: Final answer
    x = 47,145.14

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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.