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Finding the Fourth Proportional to 302,513.76, 453,770.64 and 80,892

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Solution

The fourth proportional to 302,513.76, 453,770.64 and 80,892 is: 121,338.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,513.76 : 453,770.64 = 80,892 : x
  2. Step 2: Convert to fraction form
    302,513.76/453,770.64 = 80,892/x
  3. Step 3: Cross multiply
    302,513.76x = 453,770.64 × 80,892
  4. Step 4: Simplify right side
    302,513.76x = 36,706,414,610.88
  5. Step 5: Solve for x
    x = 36,706,414,610.88/302,513.76
  6. Step 6: Final answer
    x = 121,338.00

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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.