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Finding the Fourth Proportional to 295,342.36, 443,137.46 and 126,899.60

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Solution

The fourth proportional to 295,342.36, 443,137.46 and 126,899.60 is: 190,402.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,342.36 : 443,137.46 = 126,899.60 : x
  2. Step 2: Convert to fraction form
    295,342.36/443,137.46 = 126,899.60/x
  3. Step 3: Cross multiply
    295,342.36x = 443,137.46 × 126,899.60
  4. Step 4: Simplify right side
    295,342.36x = 56,233,966,419.02
  5. Step 5: Solve for x
    x = 56,233,966,419.02/295,342.36
  6. Step 6: Final answer
    x = 190,402.64

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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.