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Finding the Fourth Proportional to 302,057.60, 452,971.20 and 91,625.60

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Solution

The fourth proportional to 302,057.60, 452,971.20 and 91,625.60 is: 137,403.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,057.60 : 452,971.20 = 91,625.60 : x
  2. Step 2: Convert to fraction form
    302,057.60/452,971.20 = 91,625.60/x
  3. Step 3: Cross multiply
    302,057.60x = 452,971.20 × 91,625.60
  4. Step 4: Simplify right side
    302,057.60x = 41,503,757,982.72
  5. Step 5: Solve for x
    x = 41,503,757,982.72/302,057.60
  6. Step 6: Final answer
    x = 137,403.46

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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.