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Finding the Fourth Proportional to 295,580.34, 443,436.12 and 85,201.88

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Solution

The fourth proportional to 295,580.34, 443,436.12 and 85,201.88 is: 127,821.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,580.34 : 443,436.12 = 85,201.88 : x
  2. Step 2: Convert to fraction form
    295,580.34/443,436.12 = 85,201.88/x
  3. Step 3: Cross multiply
    295,580.34x = 443,436.12 × 85,201.88
  4. Step 4: Simplify right side
    295,580.34x = 37,781,588,866.73
  5. Step 5: Solve for x
    x = 37,781,588,866.73/295,580.34
  6. Step 6: Final answer
    x = 127,821.72

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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.