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Finding the Fourth Proportional to 295,763.24, 443,579.50 and 85,355.40

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Solution

The fourth proportional to 295,763.24, 443,579.50 and 85,355.40 is: 128,014.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,763.24 : 443,579.50 = 85,355.40 : x
  2. Step 2: Convert to fraction form
    295,763.24/443,579.50 = 85,355.40/x
  3. Step 3: Cross multiply
    295,763.24x = 443,579.50 × 85,355.40
  4. Step 4: Simplify right side
    295,763.24x = 37,861,905,654.30
  5. Step 5: Solve for x
    x = 37,861,905,654.30/295,763.24
  6. Step 6: Final answer
    x = 128,014.24

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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.