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Finding the Fourth Proportional to 295,590.36, 443,451.12 and 85,211.88

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Solution

The fourth proportional to 295,590.36, 443,451.12 and 85,211.88 is: 127,836.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,590.36 : 443,451.12 = 85,211.88 : x
  2. Step 2: Convert to fraction form
    295,590.36/443,451.12 = 85,211.88/x
  3. Step 3: Cross multiply
    295,590.36x = 443,451.12 × 85,211.88
  4. Step 4: Simplify right side
    295,590.36x = 37,787,303,623.31
  5. Step 5: Solve for x
    x = 37,787,303,623.31/295,590.36
  6. Step 6: Final answer
    x = 127,836.73

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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.