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Finding the Fourth Proportional to 168,817.44, 253,132.72 and 69,047.68

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Solution

The fourth proportional to 168,817.44, 253,132.72 and 69,047.68 is: 103,533.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,817.44 : 253,132.72 = 69,047.68 : x
  2. Step 2: Convert to fraction form
    168,817.44/253,132.72 = 69,047.68/x
  3. Step 3: Cross multiply
    168,817.44x = 253,132.72 × 69,047.68
  4. Step 4: Simplify right side
    168,817.44x = 17,478,227,048.09
  5. Step 5: Solve for x
    x = 17,478,227,048.09/168,817.44
  6. Step 6: Final answer
    x = 103,533.30

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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.