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Finding the Fourth Proportional to 459,798.80, 689,287.80 and 179,250.80

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Solution

The fourth proportional to 459,798.80, 689,287.80 and 179,250.80 is: 268,716.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,798.80 : 689,287.80 = 179,250.80 : x
  2. Step 2: Convert to fraction form
    459,798.80/689,287.80 = 179,250.80/x
  3. Step 3: Cross multiply
    459,798.80x = 689,287.80 × 179,250.80
  4. Step 4: Simplify right side
    459,798.80x = 123,555,389,580.24
  5. Step 5: Solve for x
    x = 123,555,389,580.24/459,798.80
  6. Step 6: Final answer
    x = 268,716.21

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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.