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Finding the Fourth Proportional to 295,634.40, 443,451.60 and 74,018.40

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Solution

The fourth proportional to 295,634.40, 443,451.60 and 74,018.40 is: 111,027.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,634.40 : 443,451.60 = 74,018.40 : x
  2. Step 2: Convert to fraction form
    295,634.40/443,451.60 = 74,018.40/x
  3. Step 3: Cross multiply
    295,634.40x = 443,451.60 × 74,018.40
  4. Step 4: Simplify right side
    295,634.40x = 32,823,577,909.44
  5. Step 5: Solve for x
    x = 32,823,577,909.44/295,634.40
  6. Step 6: Final answer
    x = 111,027.60

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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.