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Finding the Fourth Proportional to 295,705.20, 443,314.80 and 127,354.80

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Solution

The fourth proportional to 295,705.20, 443,314.80 and 127,354.80 is: 190,927.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,705.20 : 443,314.80 = 127,354.80 : x
  2. Step 2: Convert to fraction form
    295,705.20/443,314.80 = 127,354.80/x
  3. Step 3: Cross multiply
    295,705.20x = 443,314.80 × 127,354.80
  4. Step 4: Simplify right side
    295,705.20x = 56,458,267,691.04
  5. Step 5: Solve for x
    x = 56,458,267,691.04/295,705.20
  6. Step 6: Final answer
    x = 190,927.54

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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.