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Finding the Fourth Proportional to 283,568.80, 424,828.40 and 165,296.80

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Solution

The fourth proportional to 283,568.80, 424,828.40 and 165,296.80 is: 247,639.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,568.80 : 424,828.40 = 165,296.80 : x
  2. Step 2: Convert to fraction form
    283,568.80/424,828.40 = 165,296.80/x
  3. Step 3: Cross multiply
    283,568.80x = 424,828.40 × 165,296.80
  4. Step 4: Simplify right side
    283,568.80x = 70,222,775,069.12
  5. Step 5: Solve for x
    x = 70,222,775,069.12/283,568.80
  6. Step 6: Final answer
    x = 247,639.29

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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.