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Finding the Fourth Proportional to 295,797.20, 443,974.20 and 155,656.40

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Solution

The fourth proportional to 295,797.20, 443,974.20 and 155,656.40 is: 233,631.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,797.20 : 443,974.20 = 155,656.40 : x
  2. Step 2: Convert to fraction form
    295,797.20/443,974.20 = 155,656.40/x
  3. Step 3: Cross multiply
    295,797.20x = 443,974.20 × 155,656.40
  4. Step 4: Simplify right side
    295,797.20x = 69,107,425,664.88
  5. Step 5: Solve for x
    x = 69,107,425,664.88/295,797.20
  6. Step 6: Final answer
    x = 233,631.10

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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.