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Finding the Fourth Proportional to 701,805.12, 1,052,697.90 and 169,321.68

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Solution

The fourth proportional to 701,805.12, 1,052,697.90 and 169,321.68 is: 253,980.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,805.12 : 1,052,697.90 = 169,321.68 : x
  2. Step 2: Convert to fraction form
    701,805.12/1,052,697.90 = 169,321.68/x
  3. Step 3: Cross multiply
    701,805.12x = 1,052,697.90 × 169,321.68
  4. Step 4: Simplify right side
    701,805.12x = 178,244,576,960.47
  5. Step 5: Solve for x
    x = 178,244,576,960.47/701,805.12
  6. Step 6: Final answer
    x = 253,980.16

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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.