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Finding the Fourth Proportional to 295,817.20, 443,725.80 and 243,329.20

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Solution

The fourth proportional to 295,817.20, 443,725.80 and 243,329.20 is: 364,993.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,817.20 : 443,725.80 = 243,329.20 : x
  2. Step 2: Convert to fraction form
    295,817.20/443,725.80 = 243,329.20/x
  3. Step 3: Cross multiply
    295,817.20x = 443,725.80 × 243,329.20
  4. Step 4: Simplify right side
    295,817.20x = 107,971,443,933.36
  5. Step 5: Solve for x
    x = 107,971,443,933.36/295,817.20
  6. Step 6: Final answer
    x = 364,993.80

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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.