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Finding the Fourth Proportional to 295,712.80, 443,626.80 and 127,232.80

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Solution

The fourth proportional to 295,712.80, 443,626.80 and 127,232.80 is: 190,873.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,712.80 : 443,626.80 = 127,232.80 : x
  2. Step 2: Convert to fraction form
    295,712.80/443,626.80 = 127,232.80/x
  3. Step 3: Cross multiply
    295,712.80x = 443,626.80 × 127,232.80
  4. Step 4: Simplify right side
    295,712.80x = 56,443,879,919.04
  5. Step 5: Solve for x
    x = 56,443,879,919.04/295,712.80
  6. Step 6: Final answer
    x = 190,873.98

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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.